Net Driven > Home - 2015 DB Catalog Canada · 2016. 3. 18. · *Intended for pre 1976 vehicles...

What’s Inside...What’s Inside...

Photo Courtesy of Ron Dawson

When The Best Demand The Best... They Call Diamond BackWhen The Best Demand The Best... They Call Diamond Back

We Sell Only DOT Approved TiresWe Sell Only DOT Approved Tires

1

Photo Courtesy of Patrick Daly and Mobsteel www.mobsteel.com

Section 1

Section 2

Section 3

Section 4

Section 5

The New Auburn - The New Concept..............The New Standard

Wide Whitewalls - Red Line ......................................Page 4More sizes than all the competitioncombined 13”-14”-15”-16”

Larger Rim Diameter Sizes ........................................Page 2016” - 17” - 18” - 19” - 20” - 22”

Specialty Whitewalls ..........................................................Page 32General and specific application

Information Section ..........................................................Page 37Cover photo courtesy of Rooster's Rod Shop, Dennis Rostenbach, Gaffney, SC

The true “piecrust” shoulderperfectly duplicates the biasply tire designs of yesteryear.

Made from BRANDNEW RADIAL TIREmolds... not frombias ply molds.

Diamond Back...AUBURNWe’re Always First In

Innovation and Technology.

The future of the classic car hobby is growing at a rapidpace. With the variety of parts available to the con-sumer, cars are approaching a state of drivability that wasnot possible in the past. I see the future of this marketas more demanding, more driving, more group tours andagain with the proliferation of parts available, today's clas-sic cars can be turned into serious driving machines.What I don't see is a classic tire market that iskeeping pace with market demands. Productsavailable today are the same products that were availableyears ago. At Diamond Back, we are moving forwardwith technology and innovation.

It's time for a better product. It's time for a nostalgicstyle true radial with modern day performance and theonly way to accomplish this is from the drawing board,not the scrap yard. That approach was never an option.It may produce the correct look but will not give you allof the benefits, such as ride and handling that you expect.

Starting from scratch takes time and it took much longerthan expected. It's not about how fast the productarrives but about how good it will be when it arrives.The Auburn will be well worth the wait! Watch our website for arrival dates!

2

This is a

RADIAL!

It’s the dawn of a new day...the day that will redefine classic tires.

It’s the dawn of a new day...the day that will redefine classic tires.Introducing the Auburn Radial... The new Standard.Introducing the Auburn Radial... The new Standard.

3

Our Customer Service Is The Best!Our Customer Service Is The Best!

A fourth-generation family businessA fourth-generation family business

Working Harder to be Number 1!

Cooper, Clif and Tab

4

• Diamond Back II - Our Best Seller! Standard profile 70-75 seriesRed line • Wide Whites • Wider Whites • Extra Wide Whites ........Pages 5-6

• Diamond Back III50-60-70 Series BFG Radial T/ARed line • Wide Whites • Wider Whites • Extra Wide Whites...........Pages 7-8

• Diamond Back M5 & M6Wide White and Wider WhitesGreat Quality at Lower Prices..................................................................................Page 9

• Diamond Back XL15"-16"-17"-18" Larger Sizes - Great Hi Boy Rear ........................................Page 10

• Diamond Back Trailer TiresWide Whites 6 & 8 Ply-Extra Load Service ....................................................Page 11

• Diamond Back MXGreat Mid Year Corvette TiresMichelin Defender ............................................................................................................Page 12

• Unusual, hard to find front sizes14"-15"-16"-17" ....................................................................................................................Page 13

• Diamond Back LS5 High Performance50-60-70 SeriesRed line • Wide Whites • Wider Whites • Extra Wide Whites ..........Page 14

• Diamond Back FuryThis Great Tire is Back With More Sizes!15"-16"-17" Sizes Many Big/Little Combos........................................................Page 15

• Vintage MercedesSizes 13"-14" sizes ..............................................................................................................Page 16

• 13" Sizes & Rare 700x15 Radial....................................................................Page 17

• Rolls Royce-Bentley-Stretch Limos-Funeral Cars ......................Page 18

• Trike Tires For all Trike Rears 13"-18"....................................................Page 19

Section 2Section 2

*Intended for pre 1976 vehicles only. See page 39 for more information.

Diamond Back IIDiamond Back IIThe Best Tire...The Best Look...The Best Performance...

185/65R14 23.4 2 5 7.3 85 5 - 62185/75R14 25 24 5 7.1 89 4 - 52195/75R14 25.5 22 5.2 7.6 92 5 - 62205/75R14 26.1 22 5.4 7.8 95 5 - 7

215/75R14 26.7 22 5.6 8.3 98 5 - 7

185/70R14 24.2 24 5.1 7.5 87 42 - 6195/70R14 24.8 24 5.4 7.9 90 5 - 62205/70R14 25.2 22 5.6 8.3 93 5 - 7

215/70R14 25.8 22 6 8.8 96 52 - 7

185/60R15 23.8 2 5.7 7.4 84 52 - 7

195/60R15 24.2 2 5.7 7.7 87 52 - 7

205/60R15 24.7 2 6 8.3 90 52 - 7

215/60R15 25.1 24 6 8.6 93 6 - 72225/60R15 25.6 24 6.2 8.7 96 52 - 7

185/65R15 24.4 2 5.5 7.3 86 5 - 62195/65R15 24.9 24 5.7 7.8 89 5 - 7

205/65R15 25.4 24 5.8 7.9 92 5 - 7

215/65R15 26 24 6 8.7 95 52 - 7

205/70R15 H Speed Rating - Page 10

205/70R15 26.3 22 5.6 8.2 95 5 - 7

205/70R15 Michelin - Page 12

215/70R15 26.9 22 6 8.4 98 52 - 7

215/70R15 Michelin - Page 12

225/70R15 27.3 22 6.4 9 100 6 - 72

205/75R15 27.1 22 5.3 7.8 97 5 - 7

215/75R15 27.7 2d 5.5 8.4 100 5 - 7

225/75R15 28.3 2w 5.8 8.7 102 52 - 72235/75R15 29 3 6.2 9.1 105 52 - 8

TIRE SIZ

E

HEIGHT

WW

WID

TH

TREA

D

WID

THSE

CTION

WID

TH

RECOMMEN

DED

RIMW

IDTH

PRIC

E

Toyo has one of America’s newest andmost modern facilities in White, GA. Mostsizes are built in the US but some sizes arestill built in other facilities. Toyo is complet-ing a large expansion of its US facility sothat it can accommodate most of the sizeslisted.

With its UTQG rating of 640AB, this tire isthe highest rated classic tire in the industry.

You should be cautious of tires with a B trac-tion rating (B being the first letter). The newDiamond Back II has a rating of 44 psi whichmakes it an excellent candidate for widerwhites and extra wide whites. With its solidshoulder ribs and non-aggressive tread style, itis, by far, the best looking tire available and it’spriced lower than competitive products.

16” Sizes Page 21

Wider Whites, Extra Wide Whites

UTQG620 AB

LOAD

INDEX

*

* Load chart page 31

5

#1

Seller

6*Intended for pre 1976 vehicles only. See page 39 for more information.

Diamond Back IIDiamond Back II

205/75R14 2w215/75R14 2w

205/70R15 2w215/70R15 2w225/70R15 2w205/75R15 2w215/75R15 3

225/75R15 3

235/75R15 32

SIZE

PRIC

EW

IDER

WHITE

Specs on page 5

215/75R14 3

215/70R15 3

205/75R15 3

215/75R15 34225/75R15 3s235/75R15 3w

SIZE

PRIC

EEXTR

A

WID

ER

WHITEThe Diamond Back II is speed rated

and designed to run at higher airpressure. When air pressure isincreased, it will decrease sidewallflex. If proper pressure is not main-tained, white wall edges can be dam-aged. When running wider whitewall tires, it is very important tomaintain a higher air pressure.Tires that carry more pressure per-form better, have a quicker steeringresponse, have better heat dissipa-tion and less rolling resistance.

Red Line

Wider WhitewallsUse 40-44 psi

Wider Whites - Extra Wide WhitesWider Whites - Extra Wide Whites

215/75R14 26.7 5.6 8.3 5 - 7

195/70R14 24.8 5.4 7.9 5 - 62205/70R14 25.2 5.6 8.3 5 - 7

215/70R14 25.8 6 8.8 52 - 7

195/60R15 24.2 5.7 7.7 52 - 7

205/60R15 24.7 6.5 8.3 52 - 7

215/60R15 25.1 6.8 8.6 6 - 72225/60R15 25.6 6.3 8.7 52 - 7

215/65R15 26 6 8.7 52 - 7

205/70R15 26.3 5.6 8.2 5 - 7

215/70R15 26.9 6 8.4 52 - 7

225/70R15 27.3 6.4 9 6 - 72

205/75R15 27.1 5.3 7.8 5 - 7

215/75R15 27.7 5.5 8.4 5 - 7

225/75R15 28.3 5.8 8.7 6 - 72235/75R15 29 6.2 9.1 6 - 8

TIRE SIZ

E

HEIGHT

TREA

D

WID

THSE

CTION

WID

TH

RECOMMEN

DED

RIMW

IDTH

PRIC

E

Only Diamond Back offers wider and extra wide whitewalls.Cars prior to 1955 had wider whitewalls.

Load IndexPage 31


Red Line or Wide WhiteFor Muscle Cars and Street Rods that Demand the Best!

Diamond Back IIIDiamond Back IIIAmerica’s Favorite Performance TireAmerica’s Favorite Performance Tire

Brand used for this modificationBF Goodrich Radial T/A

UTQG 440 AB

Smaller whitewall widths available on request.

155/80R15 25.4 2 5 6.2 83 4- 6

205/70R14 25.4 22 6.5 82 93 5 - 7215/70R14 25.8 22 7 8.7 96 52 - 7225/70R14 26.5 22 7.2 9 98 52 - 7215/60R14 24.2 2 7 8.7 96 6 - 72225/60R14 24.7 22 7.2 9 94 6 - 8235/60R14 25.1 22 8 9.5 96 62 - 82245/60R14 25.6 22 8 9.8 98 7 - 82

215/70R15 26.9 2 2 7 8.7 97 52 - 7225/70R15 27.4 2 2 7.2 9 100 6 - 72235/70R15 28 2w 7.6 9.5 102 6 - 8255/70R15 29.1 3 8.2 10.2 108 62 - 82

215/65R15 26 24 6.8 8.7 95 6 - 72

205/60R15 24.7 2 6.5 8.2 90 52 - 72215/60R15 25.2 24 7 8.7 93 6-72225/60R15 25.6 24 7.2 9 95 6 - 8235/60R15 26.1 24 7.6 9.5 98 6 - 8245/60R15 26.6 22 8 9.8 100 7 - 82255/60R15 26.8 22 8.2 10.2 102 7 - 9275/60R15 28 2w 9 11 107 7 - 9295/50R15 26.7 22 10 12.2 105 7 - 9

TIRE SIZ

E

HEIGHT

WW

WID

TH

TREA

D WID

TH

SECTIO

N WID

TH

RECOMMEN

DED

RIMW

IDTH

PRIC

E

BF Goodrich is manufactured by Michelin North America.All warranties with Michelin are voided with the addition

of a redline or whitewall. Diamond Back Classics isresponsible for any warranty issues.

This is not a BFG Silvertown.

LOAD IN

DEX *

“S” Speed Rating

Also Available:• Gold• Blue

Our Number 1 Selling Product

155/80R15

Is Back!

Load Index Page 31

Wider-Extra Wide Whites - See


For Muscle Cars and Street Rods that Demand the Best!

Diamond Back IIIDiamond Back IIIAmerica’s Favorite Performance TireAmerica’s Favorite Performance Tire

Brand used:BF Goodrich Radial T/A

215/70R14 2w225/70R14 2w

215/70R15 2w225/70R15 2w235/70R15 3

255/70R15 32

215/65R15 22

235/60R15 22245/60R15 2w255/60R15 2w275/60R15 3

295/50R15 2w

TIRE SIZ

E

WHITE

WALL

WID

TH

PRIC

E

Wider Whites - Extra Wide Whites

Wider Whites

225/70R14 3

215/70R15 3

225/70R15 3

235/70R15 34255/70R15 3w

255/60R15 3

275/60R15 34

Extra Wide Whites• Small front sizes• Compatible tread match

for larger rear sizes

Brand Used:BG Goodrich

Advantage T/A

185/70R14 24.3 24 5.2 7.4 87 5- 6185/60R15 23.7 2 5.5 7.4 84 5- 6185/65R15 24.5 2 5.5 7.4 88 5- 6195/60R15 24.2 2 6 7.9 88 52 - 7195/65R15 25 24 5.8 7.9 91 5- 7

TIRE SIZ

E

HEIGHT

WW

WID

TH

TREA

D WID

TH

SECTIO

N WID

TH

RECOMMEN

DED

RIMW

IDTH

PRIC

ELO

AD INDEX

*

Other sizes available - Call for info

Diamond Back III - SDiamond Back III - S

Diamond Back M5Diamond Back M5

9

Great Quality At Lower Prices

205/75R14 26.1 22 5.4 7.8 5-7 95 2w

205/75R15 27 22 5.3 8 5-7 97 2w215/75R15 27.7 2d 5.5 8.5 5-7 100 3

225/75R15 28.3 2w 5.7 8.8 52-72 102 3

235/75R15 29 3 6.2 9.2 6-8 105 32

205/70R15 26.3 22 5.6 8 5-7 96 2w215/70R15 26.9 22 5.8 8.6 5-7 98 2w

TIRE SIZ

E

HEIGHT

TREA

D

WID

THSE

CTION

WID

TH RIM

WID

THLO

AD

INDEXW

W

WID

THW

IDER

WHITE

GT RadialTread Pattern

Sizes Getting Hard To Find225/70R15 22” White235/70R15 2w” White

Smaller SizesAvailable For Match

15” Sizes Only - “T” Speed Rated

Diamond Back M6Small Tires - Small Prices

185/60R15 23.8 2 5.5 7.4 84

195/60R15 24.2 2 6.2 8.7 87

205/60R15 24.7 2 6.3 9.0 90

215/60R15 25.1 24 6.5 9.3 93

185/65R15 24.6 2 5.5 7.3 86

195/65R15 25 24 5.8 7.8 89

205/65R15 25.4 24 6 8.3 92

TIRE SIZ

E

HEIGHT

TREA

D

WID

THSE

CTION

WID

THLO

AD

INDEXW

W

WID

TH

AllSizes

2w

2w3

3

32

2w2w

Very High Rating - 500 AA A

205/70R15 26.3 22 6.5 8 96

215/70R15 26.9 22 6.75 8.6 98

235/75R15 29 3 7 9 105

32 Wider White

3w Extra Wide White

ΔΔ

Great choice for big-little combinations.The M6 isdesigned with wider treads without wider section

widths.With its very high rating of 500 AA A this is anexcellent chioce - not made in China.

Brand: Kenda Load Index page 31

Δ Wider whites require higher air pressureRecommended 44 psi


10

Diamond Back XL 15”-16”-17”-18”Diamond Back XL 15”-16”-17”-18”

AvailableIn

BlackSmoothy

205/70R15 26.3 22 5.6 8.2 96 5- 62215/65R16 27.1 24 6.6 8.7 98 6 - 7215/70R16 27.9 2w 6.6 8.8 100 52 - 7235/55R17 27 28 7 9.5 99 6-8

TIRE SIZ

E

HEIGHT

WW

WID

TH

TREA

D WID

TH

SECTIO

N WID

TH

APROVED

RIMS

PRIC

ELO

AD MAX

Smaller Front Sizes

255/70R15 29.2 3 7.5 10 112 62- 823322 WWiiddeerr WWhhiittee33ww EExxttrraa WWiiddeerr WWhhiittee

265/70R15 29.7 3 8 10.4 112 7-93322 WWiiddeerr WWhhiittee33ww EExxttrraa WWiiddeerr WWhhiittee

275/70R16 31.2 32 8.5 10.7 114 7-933ww WWiiddeerr WWhhiittee

255/60R17 29 22 8 10.1 110 7-933 WWiiddeerr WWhhiittee

265/70R17 31.6 3 7.5 9.8 115 7-93322 WWiiddeerr WWhhiittee

235/55R18 28 2 6.75 9.6 100 7-822244 WWiiddeerr WWhhiittee


Larger Rear Sizes

“L” is for Large - Great for Hi-BoysBrand - Federal UTQG 440 AA “H” Speed Rated 129 mph

Big Tires That Go Fast ! Big Tires That Stop Fast!

Load Index Page 31


Traction Rating - AHeat Rating - A

Beautiful,Non-Aggressive Tread

NEW

11

Another Diamond Back FirstAnother Diamond Back FirstExtra Load Trailer TiresExtra Load Trailer Tires

Smaller or larger whitewalls available to match your tow vehicle.Red lines, gold lines, white lines and blue lines are also available.

Load Range C 6 Ply RatedLoad Range D 8 Ply RatedLoad Range E 10 Ply Rated

175/80R13 C 24 24 5 7 1360 50

205/75R14 C 26.1 22 6 8 1760 50

215/75R14 C 26.7 22 6.2 8.5 1870 50

205/75R15 C 27.1 22 6.4 8 1820 50

205/75R15 D 27.1 22 6.4 8 2150 65

225/75R15 D 28.3 2w 6.9 8.8 2540 65

225/75R15 E 28.3 2w 6.9 8.8 2830 80

235/85R16 E 31.7 32 7 9.3 3640 80

TIRE SIZ

E

WW

SIZE

MAX

LOAD

SECTIO

N

WID

TH

PRIC

ELO

AD

RANGE

HEIGHT

*TRE

AD

WID

TH MAX

PRES

SURE

*Tread widths are wider than normalfor better load distribution.

Every Diamond Back Is...A Work of Art!

1960 Shasta Deluxe 19 Tallulah Belle Courtesy of Robert Usrey

NEW


Diamond Back MXDiamond Back MXLIMITED SIZES - LIMITED AVAILABILITY

Brand Used For This Modification - Michelin

MichelinDefender


• Also Available In Wide White• Smaller Whites Available

Michelin Quality and PricedLess Than the Competition

Diamond Back Classics is not associated withMichelin North America. All warranties with Michelin

are voided and Diamond Back Classics is solelyreponsible for all warranties.

205/70R14 25.4 22 6 8 93T 5- 62205/70R15 26.3 22 6 8 96T 5 - 7

22ww WWiiddeerr WWhhiittee

215/70R15 26.9 22 6.2 8.5 98T 52 - 722ww WWiiddeerr WWhhiittee

TIRE SIZ

E

HEIGHT

WW

WID

TH

TREA

D WID

TH

SECTIO

N WID

TH

APROVED

RIMS

PRIC

ELO

AD MAX

Great Vintage Mercedes Fitment

Number One Choice ForMid-Year Corvettes

Our tires are meant to be driven!

You’ve done everything...Now get the ride and performance you expect!

Only from Diamond Back!


Diamond Back Drag Radial Diamond Back Drag Radial

“V”SpeedRated

275/50R15 25.75 22 11.2 9 w275/60R15 27.75 2w 11.1 9 w

3 Wider White

325/50R15 28 2w 13.1 11w3 Wider White

TIRE SIZ

E

HEIGHT

SECTIO

N

WID

TH

PRIC

E

WW

WID

TH

TREA

D

WID

TH

All Sizes Available In Blackwall Smoothy:

Short - Narrow Front TiresShort - Narrow Front Tires

Always run smaller tires at higher pressure.These tires are rated at 44 psi.

135R15 - 145R15 - 165R15Wide Whites - Black Smoothy

Double Sided Whites

135R15 23.6 1w 3f 5.2 32-5 804

Black Smoothy - Single

Double-Sided White *

145R15 24 1w 4 5.7 32-42 937


Double-Sided White

165R15 25.3 24 44 6.5 4-5 1201


Double-Sided White *

TIRE SIZ

E

HEIGHT

WW

WID

TH

TREA

D

WID

THSE

CTION

WID

THPR

ICE

RECOMMEN

DED

RIMW

IDTH

“T” SpeedRated

Brand:Nankang

* For pre-48 cars only

MAX

LOAD

Street Legal

Nitto555

VW’s RatRods

Street RodFronts

Unsual SizesFor Small FrontsUnsual Sizes

For Small Fronts

Don’t Overlook These!14” - 15” - 16” - 17”Small Front Runners

• 185/65R14 23.4” TallDiamond Back IISpecs and photo page 5

• 185/55R16 24” TallDiamond Back IISpecs and photo page 21

• 205/55R17 25.9” TallExtra LoadSpecs and photo page 21

• 175/65R15 24” TallUniroyal TouringSpecs and photo page 23

Load Index Page 31

Popular

Sizes

14

Diamond Back LS5Diamond Back LS5

“A” Traction Rated

Any warranty issues are handled by Diamond BackClassics. All warranties with Cooper tire are void.

Manufacturer :Cooper

185/60R14 22.8 2 6 7.1 82 52-7235/60R14 25.1 22 7.6 9.1 96 7-82215/70R14 25.7 22 7 8.7 96 6-72


33 EExxttrraa WWiiddee WWhhiittee



215/70R15 26.7 22 7 8.7 98 5-7222ww WWiiddeerr WWhhiittee



235/70R15 28 2w 7.6 9.5 103 6-833 WWiiddeerr WWhhiittee

255/70R15 29 3 8.2 10.4 108 62-823322 WWiiddeerr WWhhiittee

33ww EExxttrraa WWiiddee WWhhiittee

255/70R15 “H” Rated see page 10

265/70R15 “H” Rated see page 10

215/65R15 26 24 6.8 8.4 96 6-8

2222 WWiiddeerr WWhhiittee



255/60R15 27 22 8.2 9.7 102 7-9


275/60R15 28 2w 8.9 10.7 107 72-9233 WWiiddeerr WWhhiittee

295/50R15 26.6 22 10.1 11.8 108 8-10


235/55R16 26.2 2 8 9.7 96 62-82

TIRE SIZ

E

HEIGHT

TREA

D WID

TH

SECTIO

N WID

TH

PRIC

EW

W W

IDTH

LOAD M

AX

APPRO

VED

RIMS

50-60-65-70 Series50-60-65-70 Series“T” Speed Rated • Drive Fast

• Stop FastWide • WiderExtra Wide Whitewalls

UTQG 440 ABMax Pressure - 44 PSI

255/70153w White

15

A Great Classic Tire ValueA Great Classic Tire ValueDiamond Back FuryDiamond Back Fury

UTQG440 A B

Manufacturer:Cooper

Many Big-Little Combinations!

15” - 16” - 17”

195/65R15 25 24 5.6 7.8 91 52 - 7

205/65R15 25.5 24 5.8 8.2 92 52 - 72205/70R15 26.3 22 5.3 8 95 5 - 62215/70R15 26.9 22 5.4 8.7 98 5 - 7205/75R15 27 22 5.1 8 97 5 - 7215/75R15 27.6 2d 5.3 8.5 100 5 - 7225/75R15 28.1 2w 5.6 8.8 102 52 - 72235/75R15 28.7 3 6 9 105 6 - 8

TIRE SIZ

E

HEIGHT

WW

WID

THTR

EAD

WID

TH

SECTIO

N

WID

TH RIM

WID

THPR

ICE

235/70R15 27.7 2 w 7.5 9.6 103 62-82 3 Wider Whitewall

265/75R15 30.4 3 8 10.65 112 6 - 9 32 Wider Whitewall3w Wider Whitewall

Front Sizes

Large 15”Rear Sizes


Diamond Back Sport FuryDiamond Back Sport Fury

235/70R16 28.7 2w 7.2 9.4 104

3 Wider White

255/70R16 29.8 3 4 7.6 10.3 109

32 Wider White

265/75R16 31.3 32 8 10.6 114

3 w Wider White

245/70R17 30.3 3 7.3 10 106

32 Wider White

265/70R17 31.3 34 8.3 10.6 110

32 Wider White

TIRE SIZ

E

HEIGHT

TREA

D

WID

THSE

CTION

WID

THPR

ICE

WW

WID

TH

MAX

LOAD

Don’t MissThese!

Made inthe USA

Rear SizesGreat for Hi-Boys

MAX

LOAD *

16” and 17” Sport Fury

* Load Index Page 31

Made inthe USA

Great Rear Sizes

550R16 RadialComing Soon!


640/700R13

Tread Width: 4.5"Height: 25.3"

Section Width: 7.2"

The 640X13 is a European size - 24.7”.The640/700X13 at 25.3” is an excellent fitment formany classic Mercedes and many U.S. cars.

Blackwall24 White 2d White

MercedesModels

180190200220

Brand: Vredestein Sprint ClassicBuilt in Europe for European Cars

Early Mercedes' were equippedwith a 2d" white wall.

13” Vintage Mercedes13” Vintage Mercedes

14” Vintage Mercedes14” Vintage MercedesComparison Specs For Mercedes Models

Many Early Models

175R14 25” tall - 7” wide185R14 25.6” tall - 7.4” wide195R14 26” tall - 7.6” wide

WW Widths s“ to 1”

We can make correctwhitewalls for your car.

195/70R14 Michelin 24.8 7.9

Toyo 24.8 7.9

205/70R14 Michelin 25.4 8.2

Toyo 25.2 8.3

205/75R14 Toyo 26.1 7.8

HEIGHT

BRAND

SECTIO

N

WID

TH

PRIC

E

TIRE SIZ

E


Diamond Back 13” RadialsDiamond Back 13” Radials

155/80R13 27.8 2 3.7 6.2 79

24 Wider White

165/80R13 23.4 2 4 6.5 83

24 Wider White

185/80R13 24.7 24 4.5 9.2 862w Wider White

TIRE SIZ

E

HEIGHT

WW

WID

THTR

EAD

WID

TH RIM

WID

TH

PRIC

EMAX

LOAD

Δ = Maxxis Brand

Δ

SPECIALHard to Find Size

185/80R13 with 5/8" WWMaxxis Brand

Brands May Vary With Availability

Special Size - 700R15 - Pre 1948 Luxury CarsSpecial Size - 700R15 - Pre 1948 Luxury Cars

Height - 29.4” Tread Width - 5.6”Cross Section - 8.2” Extra Load - 2270 lbs.

• Great For Rat Rods• OE Size For Luxury Cars Thru 1947

• 40s Style Piecrust Shoulder

CCOOMMIINNGG SSOOOONN!!Looks Fantastic With Beauty Bar

Add Beauty Bar

Auburn Deluxe

Photo Courtesy of Chris Ryan


Rolls Royce - BentleyRolls Royce - BentleyA Variety of Whitewalls

275/45R19 Toyo Proxes 4 Plus W 2039 2” - w” - 1”255/45R19 Toyo Proxes 4 Plus W 1984 2” - w” - 1”255/50R18 Toyo Proxes ST II V 2094 2” - w” - 1”255/55R17 Bridgestone HL400 V 1984 2” - w” - 1”235/65R16 Michelin Defender T 1929 2” - w” - 1”

235/70R15 BFGoodrich S 1929 w” - 1”1973 - 1985

215/75R15 Toyo T 1764 2” - w” - 1”1970-1974 - Replaces 815R15 and 205R15

820R15 Auburn Deluxe S 2270XL up to 3w”650R16 Auburn Deluxe S 1819XL up to 32”750R16 Auburn Deluxe S 2270XL up to 3w”

SIZE

BRAND

SPEE

D

SYMBO

LAVA

ILABL

E

WHITE

WALL

WID

THS

PRIC

EMAX

LOAD

OLDER CARS

VINTAGE CARS

Stretch - Limo TiresStretch - Limo Tires16” - 17” Extra Load Tires for Stretch Limos

Also For Funeral Homes - Family Cars, Hearses, Flower Cars

225/70R16 28.4 9 108 6-72245/60R17 28.3 9.8 109 7-82

LOAD

INDEX

DIAMET

ER

SECTIO

N

WID

TH

PRIC

E

TIRE SIZ

E

• Brand: Michelin• All sizes are rated for extra load

• Load chart... see page 31

RIMS

* Max Pressure is 50 psi

All Rolls - Bentley Cars

ΔΔ

We can also supply 18” and 19” Sizes

Every Diamond Back Classic is... A WORK OR ART!

ALSO AVAILABLE• Gold Line• Wider Whitewalls

Old and NewNew Innovative Products from

Diamond Back Classics#1 in Technology

Built to Drive!

*

o

o - 4th quarter 2015 - prices TBA

*

oo


Photo Credit Ken Attwood, Owner Brad Ewen1960 Chevrolet Apache Rat Rod

Because of the diversity of trikes, Diamond Back offers all sizes of modern radials – 13” – 18” – withthe whitewall width of your choice. At 70 mph in an open cockpit, what do you want under you?

RearSizes Only!

Photo Courtesy of Santiago Chopper

Trike TiresTrike Tires

We Have Trike Tires... All Sizes... 13” thru 18”

Whatever Type Car You Have...Street Rod... Rat Rod... Resto Mod... Resto Rod...

Lead Sled... Truck... Classic... Custom...

We have your tires.We offer more sizes than all the

competition combined... and then some.

Always First In Innovation and Technolgy!Always First In Innovation and Technolgy!

20

Section 3Section 316"-17"-18"-19"-20"-22"

Expanded Product Lines-More Selection

• Diamond Back II Small 16" Sizes205/55R17 Hard to Find 17" Front Runner ................................................

• Large Standard Profile 16"-17"-18" Sizes ....................................Page 22

• Small-Medium Touring Sizes 17"-18" ..............................................Page 23

• Diamond Back HP Small 17"-Large 22"28 Sizes Many Matching Possibilities ................................................................Page 24

• 17" Muscle Car Sizes - Unusual Sizes ..............................................Page 25Designed to replace 235/255/275/60R15

• Diamond Back P4 17"-18"-20" ................................................................Page 26Our Highest Rated Tire with Many Sizes

• Nitto Invo Ultra High Performance 17"-18"-19"-20" ........Page 27

• Nitto 555 Extreme Performance 17"-18"20" ..........................Page 28

• Diamond Back FX Unusual Large Sizes 18"-20"-22"All New Product Line-Performance Rated ................................................Page 29

• Diamond Back ST Unusual Large Sizes 18"-20"-22" ......Page 30

• Conversion Chart-Comparison Height and WidthDimensions for Converting to 17" & 18" Sizes ........................................Page 31

More 16"-17"-18" in Section 2• Diamond Back XL Large 16”-17"-18" Sizes ............................Page 10

• Diamond Back Fury Large 16"-17" Sizes ....................................Page 15

Diamond Bach II - Smaller 16” SizesDiamond Back II - Smaller 16” SizesSSeeee ppaaggee 66 ffoorr 1155”” ssiizzeess.. BBrraanndd TTooyyoo

FANTASTIC FRONT TIRE FOR...• Rat Rods • Street Rods

21

185/55R16 24 1d 5.5 7.6 83 5 - 62205/55R16 24.8 14 6.5 8.3 89 52 - 72215/55R16 25.2 12 7.5 8.9 94 6 - 72225/55R16 25.7 12 7.6 9 94 6 - 72205/60R16 25.7 12 6.2 8.1 91 52 - 72215/60R16 26 2 6.5 8.6 94 6 - 72225/60R16 26.6 2 6.8 9 97 6 - 8235/60R16 27 24 7.4 9.3 99 62 - 82205/65R16 26.3 28 6 7.9 94 52 - 72215/65R16 26.9 24 6.2 8.7 98 6 - 72215/65R16 “H” Speed Rating - Page 10225/65R16 27.5 22 7 9 99 6 - 8235/65R16 28 2w 7.2 9.4 103 62 - 82

TIRE SIZ

E

HEIGHT

WW

WID

THTR

EAD

WID

TH

SECTIO

N

WID

TH RIM

WID

THPR

ICE

LOAD

INDEX

oo = Extensa HP - Photo Page 24Load Index Chart - Page 31

oo

Fits 522” - 722” Rims• Hi-Boys • Big-Little Combos

For cars built before 1976For pre-1948 cars onlyΔ

205/55R17 25.9 1d 7 8.4 52 - 72Δ DDoouubbllee--SSiiddeedd WWhhiitteeΔ BBllaacckk SSiinnggllee SSmmooootthhyyΔ DDoouubbllee BBllaacckk SSmmooootthhyy

TIRE SIZ

E

HEIGHT

WW

WID

TH

TREA

D

WID

THSE

CTION

WID

TH

RECOMMEN

DED

RIMW

IDTH

PRIC

E

OOPPTTIIOO

NNSS

oo

Extra Load


“T” SpeedRating

UTQG620 AB

205/55R17205/55R17

Need SomethingSpecial?

• Special Size• Special Whitewall Width• Special Application• CALL US!

"Y" Speed Rated 168 mph

22

235/60R17 28.3 24 7.4 9.3 102T 62 - 8222 Wider Whitewall


235/65R17 28.9 22 7.5 9.4 104H 62 - 822w Wider Whitewall

245/65R17 29.4 22 8 9.8 107T 7 - 822w Wider Whitewall

265/65R17 30.2 2w 8.9 10.8 112T 72 - 9234 Wider Whitewall

245/70R17 30.3 3 7.3 10 110T 7 - 8234 Wider Whitewall

265/70R17 31.3 3 8.3 10.6 115S 7 - 932 Wider Whitewall

TIRE SIZ

E

HEIGHT

WW

WID

TH

TREA

D

WID

TH

SECTIO

N

WID

THRE

COMMENDED

RIMW

IDTH

PRIC

E

18” Sizes235/55R18 28 2 6.75 9.6 100V 7 - 82

24 Wider Whitewall

235/60R18 29 24 7.7 9.3 107H 62 - 822 Wider Whitewall


235/65R18 29.9 22 7.8 9.4 106T 62 - 82w Wider Whitewall


17” Sizes

235/65R16 28 2w 6.5 9.6 103S 62 - 8

225/75R16 29.3 34 6 8.7 104S 5 - 7

32 Wider Whitewall245/75R16 30.2 32 6.75 9.8 111S 6 - 72

3w Wider Whitewall265/75R16 31.3 32 7.75 10.6 116S 62 - 8

3 w Wider Whitewall215/70R16 28 2w 6 8.7 100T 5 - 72

3 Wider Whitewall225/70R16 28.4 2w 6.6 9 103S 52 - 72

3 Wider Whitewall235/70R16 28.6 2w 7.2 9.5 106S 6 - 8



32 Wider Whitewall265/70R16 30.2 34 8 10.7 112S 7 - 8

32 Wider Whitewall275/70R16 31.2 32 8 10.7 114H 7 - 82

3w Wider Whitewall

TIRE SIZ

E

HEIGHT

WW

WID

TH

TREA

D

WID

TH

SECTIO

N

WID

THRE

COMMENDED

RIMW

IDTH

PRIC

E

16” Sizes

oo = Different Tread Style See Page 10

Diamond Back 16” - 17” - 18”Diamond Back 16” - 17” - 18”

oo


MAX LOAD

SPEE

DSY

MBOL

MAX LOAD

SPEE

DSY

MBOL

Made inthe USA

Larger SizesStandard Profile

Manufacturer :YokohamaUTQG - 640 AB

Brand:Mirada

215/85R16 30.4 32 5.7 8.5 Capital215/85R16 3w Wider White750R16 31.9 3w 6 8.3 Cooper

TIRE SIZ

E

HEIGHT

WW

WID

TH

TREA

D

WID

THSE

CTION

WID

TH

PRIC

E

Other Popular 16” Sizes

BRAND


175/65R15 24 2 5.3 8.4 84T 5 - 6

205/50R17 25.1 12 7 8.4 93V 52 - 72215/50R17 25.5 1d 7.5 8.9 91T 6 - 72225/50R17 25.9 1w 7.8 9.2 94V 6 - 8

205/55R17 See page 21

215/55R17 26.3 1w 7.4 8.9 94V 6 - 72225/55R17 26.8 2 8 9.2 97T 6 - 8235/55R17 27.2 28 8.2 9.7 99H 62 - 82

215/60R17 27.2 28 7 8.7 95T 6 - 72225/60R17 27.6 24 7.2 9 99T 6 - 8235/60R17 28.1 22 7.5 9.5 102T 62 - 82

215/65R17 28 22 7 8.7 99T 6 - 72225/65R17 28.5 2d 7.2 9 102T 6 - 8

225/50R18 26.9 1w 7.9 9.2 95T 6 - 8215/55R18 27.3 1w 7.6 8.9 95T 6 - 72225/55R18 27.8 2 7.8 9.2 98H 6 - 8225/60R18 28.6 24 7.8 9 102T 6 - 8

TIRE SIZ

E

HEIGHT

WW

WID

THTR

EAD

WID

TH

SECTIO

N

WID

TH RIM

WID

THPR

ICE

LOAD

INDEX

18” Sizes

Uniroyal is manufactured by Michelin North America.All warranties with Michelin are voided with the addi-tion of a redline or whitewall. Diamond Back Classicsis responsible for any warranty issues.

Medium Sizes - Standard ProfileDiamond Back 17”-18” TouringDiamond Back 17”-18” Touring

Brand Used: Uniroyal Touring • High Speed Ratings • UTQG T-Rated 660 ABH-Rated 560 AA

15” Sizes

Dare tobe

unique!

The only company inthe world that bringsyou Redline, Blueline,

Goldline and WideWhites from 17's to 22'

Please check fitment and clearance.No Returns or Exchanges.

See conversion chart page 31.

Non-DirectionalTread

Simple...Functional.

AlsoAvailable• Goldline• Blueline• SmallerWhites

17” Sizes

NEW

24

Diamond Back HP 17”-18”-20”-22”Diamond Back HP 17”-18”-20”-22”Toyo Extensa HP - “V” & “W” Speed Ratings

Lots of Big-Little CombosMany Sizes For Selection

More Possible CombinationsLarger and Wider 17”• 18” • 20” • 22”

Same Brand... Compatible Tread StyleSee page 30

215/45R17 24.6 1s 7.7 8.2 91V 7 - 8

225/45R17 24.9 12 8 8.7 94V 7 - 82235/45R17 25.2 12 8.4 9.1 97V 72 - 9

245/45R17 25.6 1w 8.6 9.4 95W 72 - 9

205/50R17 25.1 12 7 8.2 93V 52 - 7215/50R17 25.5 1w 7.5 8.7 95V 6 - 72225/50R17 25.9 1w 7.9 8.9 93V 6 - 8235/50R17 See page 26205/55R17 See page 21215/55R17 26.3 1w 7.5 8.7 93V 6 - 72225/55R17 26.7 2 8 9 95V 6 - 8235/55R17 27.2 28 8.3 9.6 99W 62 - 82

255/40R17 25 12 8.5 10 98W 82 - 10

255/35R18 25 14 8.6 10 93V 82 - 10275/35R18 25.5 14 9.3 10.7 99W 9 - 11

225/40R18 25.1 14 7.5 8.9 92V 72 - 9235/40R18 25.4 14 9.4 9.4 95V 8 - 92245/40R18 25.7 1s 9.6 9.6 99W 8 - 92

235/45R18 See page 26245/45R18 26.7 1d 8.2 9.6 100W 72 - 9255/45R18 27 1w 9 10.3 103W 8 - 92

225/50R18 26.9 1w 7.9 8.9 99W 6 - 8235/50R18 27.2 1w 8 9.4 101W 62- 82245/55R18 28.6 28 8.5 10 102V 7 - 82

TIRE SIZ

E

HEIGHT

WW

WID

THTR

EAD

WID

TH

SECTIO

N

WID

TH APPRO

VED

RIM W

IDTH

PRIC

ELO

AD

INDEX

18” Sizes

245/35R20 26.8 f 9.5 95V 8 - 92255/35R20 26.9 f 10 97W 82 - 10

245/40R20 27.7 18 9.6 99W 82 - 10

265/35R22 29.4 18 10.5 102V 9 - 102

HEIGHT

WW

WID

TH

SECTIO

N

WID

TH APPRO

VED

RIM W

IDTH

PRIC

ELO

AD

INDEX

22” Sizes

20” Sizes


UTQG360 AA

Directional Treadsee page 25

NEW

25

Diamond Back 17” Muscle Car SizesDiamond Back 17” Muscle Car Sizes

“V” Speed Rated UTQG 300 A A

225/50R17 26 8 9 94 44 6 - 8255/50R17 27.1 9 10.2 105 50 7 - 9275/50R17 27.9 10 11.1 110 50 72 - 92

TIRE SIZ

E

HEIGHT

TREA

D

WID

THSE

CTION

WID

TH

RECOMMEN

DED

RIMW

IDTH

PRIC

E

Nitto 450Nitto 450

Great muscle car sizes!


LOAD

INDEX MAX

PRES

SURE

225/50R17 has same dimensions as 235/60R15255/50R17 has same dimensions as 255/60R15275/50R17 has same dimensions as 275/60R15

1968 Camaro "Reloaded" Built On www.V8TVshow.com

* Asymmetrical tires are designed with different designs oneach side of the tread. These design differences are meantto improve the tires overall performance. For installation,these tires are marked inside and outside. All red lines orwhite walls are applied to the outside so that installation isnever a problem.

* Directional tires have to rotate in a certain direction sothe tires are marked left and right with each side showing a

directional arrow for rotation. For each set of directionaltires we produce, there are 2 for the left side and 2 forthe right side. Tires produced for the driver's side or leftside had the left marking symbol removed because of oursmoothy process. This leaves the right marking symbol onthe inside. Tires produced for the right side will have theleft marking symbol left on the inside of the tire. To avoidconfusion, use the directional markings on the sidewall,usually in the form of an arrow.

Directional Tires - Asymmetrical TiresWhat's the Difference?

Important Information

MMoosstt 1177"",, 1188"" aanndd 2200"" hhiigghh ppeerrffoorrmmaannccee ttiirreess hhaavvee eeiitthheerr aann aassyymmmmeettrriiccaall ssttyyllee oorr aa ddiirreeccttiioonnaall ttrreeaadd ssttyyllee..

Please checkfitment andclearances

before ordering.We cannotaccept anyreturns or

exchanges.

26

Our Highest Rated Tire - “W” - 168 mph and “Y” - 186 mph ratedAll Tires are Extra-Load

The Best UTQG Rating 560 AAToyo Proxes 4 Plus

No Mileage SacrificeFor Performance

• Better cornering• Enhanced braking performance• Protection from hydroplaning• Quicker steering response

225/40R18 25.1 14 9.1 92 72 - 9235/40R18 25.3 14 9.6 95 8 - 92245/40R18 25.7 1s 9.8 97 8 - 92255/40R18 25.9 12 10.2 99 82 - 10

275/35R18 25.6 1s 10.8 99.4 9 - 11285/35R18 26 1s 11.6 101 92 - 11

215/45R18 25.5 14 8.6 93W 7 - 8225/45R18 25.9 12 9 95W 7 - 82235/45R18 26.2 12 9.8 98W 72 - 9245/45R18 26.6 1w 9.7 100W 8 - 92255/45R18 26.9 1d 10.2 103 8 - 92

225/50R18 26.9 1d 9.2 95W 6 - 8235/50R18 27.2 1w 9.7 101 62 - 82

TIRE SIZ

E

HEIGHT

SECTIO

N

WID

TH

APPRO

VED

RIMS

LOAD

INDEXW

W

WID

THPR

ICE

17” Sizes

Some 19” Sizes Available20” Sizes


Ultra High Performance 17”-18”-20”Ultra High Performance 17”-18”-20”

Rim Courtesy of Mobsteelwww.mobsteel.com

205/50R17 25.1 12 8.5 93W 52 - 72215/50R17 25.4 1w 9.6 95W 6 - 72

215/45R17 24.6 1s 8.4 91W 7 - 8225/45R17 25 12 8.9 94W 7 - 82235/45R17 25.3 12 9.5 97W 72 - 9245/45R17 25.8 1w 9.8 99W 72 - 9

235/50R17 26.3 12 9.8 100W 62 - 82

275/40R17 25.7 1w 10.9 98W 9 - 11

18” Sizes

295/30R20 27 f 11.9 101Y 10-11

245/35R20 26.8 f 9.8 95W 8 - 92255/35R20 27.1 1 10 97Y 82 - 10275/35R20 27.6 18 10.9 102Y 9-11315/35R20 28.7 1d 12.6 110Y 102 - 122

245/40R20 27.7 18 9.8 99W 8-92275/40R20 28.7 1d 10.9 106Y 9-11

245/45R20 28.7 1d 9.6 103Y 72-9255/45R20 29.1 1w 10 105Y 8-92

AsymmetricalTread

See Page 25

NITTO INVO “W” Speed Rated

TIRE SIZ

E

HEIGHT

SECTIO

N

WID

TH

RECOMMEN

DED

RIMW

IDTH

PRIC

E

Late Model and Resto-Mod Muscle CarsLate Model and Resto-Mod Muscle CarsUltra High Performance Red LinesUltra High Performance Red Lines

o245/45R20 28.7 9.65 99 72 - 9o255/45R20 29 10.1 101 8 - 92275/40R20 28.6 10.9 106 9 - 102295/35R20 28.1 11.7 101 10 - 112315/35R20 28.6 12.4 106 102 - 12

• EExxcceeppttiioonnaall DDrryy PPeerrffoorrmmaannccee

The outer shoulder is made of large, nearly continuous treadblocks, which increase the amount of surface area contactingthe road. This optimizes dry performance and cornering.

• EExxcceelllleenntt SSttaabbiilliittyy

The inner shoulder has a continous rib formed from a single,solid block. This design increases the tire’s rigidity and stabili-ty.This rigid design keeps you connected to the road duringhard braking and acceleration.

Luxury-Sport Ultra-High Performance

o = Challengers - Chargers - Chrysler 300

UTQG

1260 AA A

Corvette Sizes245/40R18 25.7 9.7 93 8 - 92275/35R18 25.6 10.7 100 9 - 11

285/35R19 26.7 11.3 99 92 - 11

325/30R19 26.8 12.9 105 11 - 12

Camaro Sizes


LOAD

INDEX

Asymmetrical Tread - See page 25

225/45R17 25 9 91 7 - 82235/45R17 25.5 9.3 94 72 - 9245/45R17 25.8 9.6 95 72 - 9

225/40R18 25.1 9 92 72 - 9235/40R18 25.8 9.5 91 8 - 92275/40R18 26.7 11 99 9-11

225/45R18 26 9 96 7 - 82245/45R18 26.7 9.6 96 72 - 9255/45R18 26.9 10 99 8 - 92

245/50R18 27.9 9.7 104 7 - 82

Other Sizes

Photo Courtesy of Greg Gonzales

Bolt 'em onand feel thedifference!

Extreme Performance - 17” - 18” - 20”Diamond Back - Nitto BrandDiamond Back - Nitto Brand

NT555 “W” Speed Rated

The NT555 is a summer-oriented ultra-high perform-ance street tire designed with the performance driver inmind. With one of the largest contact patches available,the NT555 provides superior traction and reliable han-dling - without sacrificing tread life. Both tread patternand compounds were optimized for dry performance.The highly rigid tread blocks provide stability while pro-longing the life of the tire. The NT555 will get you offthe line quicker, provide stability in the straights andconfidence in the corners.

NITTO 555

Also AvailableIn Small White

28

235/45R17 25.3 44 8.5 9.3 93 72 - 9

245/45R17 25.7 35 8.7 9.6 89 72 - 9

255/45R17 26 35 9 10.1 92 8 - 92255/50R17 27.1 35 9.5 10.4 101 7 - 9

275/40R17 25.6 44 10 11.2 101 9 - 11

285/40R17 26 35 10.2 11.4 95 9 - 11

315/35R17 25.6 44 11.3 12.5 101 102 - 122

TIRE SIZ

E

HEIGHT

RECOMMEN

DED

AIRPR

ESSU

RE

TREA

D

WID

TH

SECTIO

N

WID

TH RIM

WID

TH

PRIC

ELO

AD

INDEX

17” Sizes

225/40R18 25.2 44 8 9.2 92 72 - 9

235/40R18 25.5 50 8.5 9.5 91 8 - 92245/40R18 25.7 50 8.7 9.7 93 8 - 92225/45R18 26 44 8 8.9 95 7 - 8

245/45R18 26.6 50 8.6 9.7 100 72 - 9

255/45R18 27 44 8.8 10.2 100 8 - 92275/40R18 26.6 50 9.8 10.9 103 9 - 11

285/40R18 27 44 10.3 11.4 101 92 - 11

Smaller 18” Sizes

255/35R18 25.1 44 9 10.1 90 82 - 10

265/35R18 25.2 44 9.5 10.5 93 9 - 102275/35R18 25.6 44 9.7 10.9 95 9 - 11

285/35R18 25.9 44 9.9 11.3 97 92 - 11

295/45R18 28.3 50 10.3 11.5 110 92 - 11

235/50R18 27.3 50 8.5 9.5 100 62 - 82265/50R18 28.4 44 9.6 10.8 103 72 - 92

Wider - Larger 18” Sizes

245/35R20 26.8 50 8.6 9.8 95 8 - 92255/35R20 27 50 8.7 9.9 97 82 - 10

265/35R20 27.3 50 9.5 10.7 99 9 - 102275/35R20 27.6 50 9.7 10.9 102 9 - 11

245/40R20 27.7 50 8.4 9.76 99 8 - 92255/45R20 29 44 8.9 10.1 101 8 - 92285/30R20 26.9 50 9.5 11 99 92 - 102

20” Sizes

EXPANDED - NEW SIZES!“W” Speed Rated UTQG 300 A A 168 mph


Directional TreadSee page 25

Please check fitment and clearances before ordering.We cannot accept any returns or exchanges.

Unusual Sizes 18” • 20” • 22”Unusual Sizes 18” • 20” • 22”Diamond Back FXDiamond Back FX

18” Sizes

A Great Looking VeryHigh Performance Rated

Tire For Many Applications

“V” and “W” Speed RatingsUTQG - 320 AA

255/45R18 27.2 1w 8.5 10 99V 8 - 92235/50R18 27.4 1w 8.2 9.4 97V 62 - 82235/60R18 28.9 24 8.2 9.4 107V 62 - 82255/55R18 29 24 9 10.5 109Y 7 - 9

TIRE SIZ

E

HEIGHT

WW

WID

THTR

EAD

WID

TH

SECTIO

N

WID

TH RIM

WID

THPR

ICE

LOAD

INDEX

20” Sizes255/40R20 28 14 8.3 10.3 101Y XL 8 - 92275/40R20 28.6 1d 8.9 10.8 106W XL 9 - 10

255/45R20 29.1 1w 8.2 10 105V 8 - 92275/45R20 29.7 2 8.8 10.6 110V 82- 102

315/35R20 28.6 1d 10.7 12.7 106W 102- 122


Beautiful, Simple, Functional

Non Aggressive Tread Style

Asymmetrical tread see page 25

Brand: Federal

295/45R20 30.4 24 11.6 11 114 92 - 11

265/50R20 30.5 24 10.8 8.9 111 72- 92285/50R20 31.2 22 11.4 9.3 116 8 - 10

275/55R20 32.1 2w 11 9 117 72- 92

275/60R20 33.1 3 10.9 9 114 72- 92

NEW

22” Sizes295/30R22 29 18 11 11.6 103W 10 - 11

265/35R22 29.3 18 10 10.5 102W 9 - 10

20" Rim Courtesy of Mobsteelwww.mobsteel.com

Please check fitment and clearances: No Returns or Exchanges.

30

Diamond Back 17”-18”-20”-22”

255/60R17 29 22 10.1 110 7 - 9

2w Wider White

275/60R17 30 3 10.8 110 72 - 9234 Wider White

285/60R17 30.4 3 11.4 114 8 -10

34 Wider White

TIRE S

IZE

HEIGHT

WW

WID

TH

SECTIO

N

WID

TH APPRO

VED

RIM W

IDTH

PRIC

ELO

AD

INDEX

17” Sizes

255/45R18 27 1w 9.8 99 8 - 92295/40R18 28.3 2 11.4 105 92 - 11er

255/50R18 28.1 2 10.2 106 7 - 9

255/55R18 29 24 10.2 109 7 - 9

22 Wider White

255/60R18 30 22 9.9 112 7 - 9

2w Wider White

285/60R18 31.3 2d 11.3 116 8 - 10

38 Wider White

18” Sizes

Smaller Whites Available

315/35R20 28.6 1d 12.2 110 102 - 12

3ider

255/40R20 28 18 10 101 82 - 10

275/40R20 28.7 12 10.7 106 9 - 11

295/40R20 29.3 1w 11.7 106 10 - 112

255/45R20 29 1w 9.9 105 8 - 92265/45R20 29.4 1w 10.2 108 82 - 10

275/45R20 29.7 2 10.6 110 82 - 10

295/45R20 30.4 28 11.6 114 92 - 11

245/50R20 29.7 2 10 102 7 - 82255/50R20 30 2 10.2 109 7 - 9

265/50R20 30.4 28 10.8 111 72 - 92285/50R20 31.2 2d 11.4 116 8 - 10

305/50R20 32 2f 12.1 120 82 - 11

20” Sizes

TIRE S

IZE

HEIGHT

WW

WID

TH

SECTIO

N

WID

TH APPRO

VED

RIM W

IDTH

PRIC

ELO

AD

INDEX

265/35R22 29.3 18 10.5 102 9 -10

285/35R22 29.8 1s 11.2 106W 92 - 11 3ier

255/40R22 30.3 12 10.5 106V 9 - 102285/40R22 31 1w 11.1 110V 92 - 11

305/40R22 31.6 2 12.1 114V 10 - 12

265/45R22 31.4 2 10.3 109V 82 - 10

285/45R22 32 28 11.1 114V 9 - 102305/45R22 32.8 2s 11.8 118V 92 - 112

22” Sizes

Larger Sizes Toyo Proxes ST II“V” Speed Rated - 149 mph

UTQG 420 AA


All Sizes Rated For Extra Load - See page 31Made inthe USA

Diamond Back 17”-18”-20”-22”

More Possible Combinations17” - 18”

Same Brand... Compatible Tread StyleSee page 24

Directional tread see page 25

Please check fitment and clearances: No Returns or Exchanges.

Rim courtesy WheelSmithwww.thewheelsmith.net

Conversion Chart For 17” - 18” RimsConversion Chart For 17” - 18” RimsTire Size Height Section Width

14” 195/70R14 24.8 7 .815” 195/65R15 25 7.817” 215/45R17 24.8 8 .317” 205/50R17 25.1 8 .318” 225/40R18 25.1 8 .9

14” 205/70R14 25.4 8 .215” 205/65R15 25.4 7 .917” 225/45R17 25.2 8 .817” 235/45R17 25.4 9 .318” 235/40R18 25.5 9 .5

14” 215/70R14 25.8 8 .715” 215/65R15 26 8.715” 225/60R15 26.1 9 .515” 235/60R15 25.6 8 .717” 215/50R17 25.7 8 .717” 245/45R17 25.7 9 .417” 225/50R17 26.1 8 .918” 225/45R18 25.9 8 .818” 245/40R18 25.7 9 .7

14” 225/70R14 26.5 915” 245/60R15 26.6 9 .817” 215/55R17 26.3 8 .917” 235/50R17 26.3 9 .418” 245/45R18 26.6 9 .718” 275/40R18 26.6 10 .9

15” 215/70R15 26.9 8 .417” 225/55R17 27 917” 215/60R17 27.2 8 .617” 255/50R17 27.1 10 .218” 235/50R18 27.2 9 .518” 285/40R18 27 11.418” 255/45R18 27 10.2

31

Tire Size Height Section Width

15” 225/70R15 27.4 915” 255/60R15 27.2 9 .317” 235/55R17 27 10.217” 215/60R17 27.2 8 .617” 255/50R17 27.1 10 .218” 235/50R18 27.3 9 .5

15” 235/70R15 28 9.515” 275/60R15 28 11.117” 235/60R17 28.1 9 .417” 215/65R17 28 8.717” 275/50R17 27.9 11 .118” 235/55R18 28 9.618” 265/50R18 28.4 10 .618” 295/45R18 28.3 11 .5

15” 255/70R15 29.1 10 .217” 235/55R17 29.1 9 .517” 255/60R17 29 10.117” 235/65R17 28.9 9 .418” 235/60R18 29 9.3

15” 265/70R15 29.6 10 .717” 245/65R17 29.4 9 .818 245/60R18 29.4 9 .8

15” 265/75R15 30.4 10 .717” 245/70R17 30.3 1017” 265/65R17 30.2 10 .817” 285/60R17 30.4 11 .418 255/60R18 30 10.218” 265/60R18 30.5 10 .7

• Other Lar ge S izes

17” 265/70R17 31.3 10 .618” 255/60R18 31.1 10 .218” 285/60R18 31.3 11 .3

P 93 H 130Q 99 V 149R 106 W 168S 112 Y 186T 118

87 120188 123589 127990 132391 135692 138993 143394 147795 152196 156597 160998 165399 1709100 1764101 1819102 1874103 1929104 1984105 2039106 2094

107 2149108 2205109 2271110 2337111 2403112 2469113 2535114 2601115 2679116 2756117 2833118 2910119 2998120 3086121 3197122 3307123 3417

SYMBO

L

SPEE

DSY

MBOL

SPEE

D

INDEX

POUNDS

INDEX

POUNDS

SPEED SYMBOL

LOAD INDEX

If You Are Changing To 17” or 18” Rims, This Chart Could Be Useful

A Tire Size Cross Reference Chart You’ll Find HandyA Tire Size Cross Reference Chart You’ll Find Handy

750-14 775-14 26.8” F78-14 26.5” 205-75R14 26.1”

800-14 825-14 27.4” G78-14 27.2” 215-75R14 26.7”

640-15 735-15 26.5” E78-15 26.3” 185-80R15 26.7”

670-15 775-15 27.5” F78-15 27.4” 205-75R15 27”

710-15 815-15 28” G78-15 27.8” 215-75R15 27.6”

760-15 845-15 28.6” H78-15 28.3” 225-75R15 28.1”

800-15 900-15 29.5” L78-15 29.3” 235-75R15 29”

Diamond Back Classics Tire Size Conversion Table

1950’s 1960’s AverageHeight 1970’s Average

HeightModernRadial

AverageHeight

If you have an older classic car, you probably know the car’s original tiresize, but not how to cross reference it to a modern tire size. Or, maybeyou know the diameter of the tire you want. I’ve prepared a table herefor you to use as a quick reference. Notice that as you read across, each

line represents the same basic tire size, all the way from left to right. Youmight want to make a copy of this chart and tape it to your tool boxor inside a cabinet door, where it will be easy to get your hands onwhenever you need it.

32

Section 4Section 4

SPECIALTY SIDEWALL DESIGNS

• Lincoln Continental Mark III IV VCorrect Sidewall Designs 1969-1979 models ..................................

• Blackwall SmoothiesVery Popular Blackwall. ..........................................................................................Page 34

• Smaller Whitewalls for Cars after 1962 ..............................Page 35

• The Beauty Bar. ....................................................................................................Page 35

• Specialty Whitewall for 60’s & 70’s Luxury Cars ..Page 36

• Cadillacs & Lincolns ........................................................................................Page 36

• 1965 - 1966 Thunderbird Red-White ......................................Page 36

33

For Lincoln Year Models 1969-1979

Height 29” • Section Width 9”

“T” Speed Rated

Jubilee Style

Lincoln Specialty TiresLincoln Specialty Tires

Continental • Mark IIIMark IV • Mark V

235/75R15 Toyo

FFoooottnnoottee:: Sizes 225R15, 230R15These are European metric sizesMichelin used for their earlier products.All sizes were the same dimensions assize 235/75R15.

YEAR MODELORIGINAL

SIZEOPTIONAL

SIZE

Fitment Chart1969-1979

HHiigghhlliigghhtteeddSSiizzeess AArree MMiicchheelliinn

Lincoln was the first American car company to use aMichelin tire as original equipment. From 1970-1972,Michelin supplied Lincoln with the size 225R15 with a3/8" white stripe for the Mark III, Mark IV and theContinental. From 1973-75, the size was changed to230R15, still using the 3/8" white stripe. The 225R15and 230R15 were almost identical in dimensions.From 1976-1978, no Michelins were used. For thattime period, Lincoln was using newly developeddomestic radials in small whitewalls but the optional

whitewall style of that period was the Jubilee style.This style featured a two stripe design with a 1 1/4"whitewall and a 1/4" white accent stripe on top. Wehave the correct dimensions recorded for exact repro-duction of this unique and distinctive style. In 1979,Lincoln went back to the 225R15 Michelin, this timewith a 3/4" whitewall. This style can also be repro-duced here also. The new Auburn Premium radial hasa tread style that is almost identical to the originalMichelin design.


w” White225R151979

s” White225R15 70-72230R15 73-75

OptionalJubileeStyle

1970 Continental 915-15 225R151970 Mark III 225R15

1971-72 Continental 225R151971-72 Mark III-IV 225R15

1973-75 Continental 230R15 235/75R151973-75 Mark IV 230R15 235/75R151976 - 78 Jubilee 2-Stripe Style1979 Continental 225R15 LR78-151979 Mark V 225R15 LR78-15

NEW

34

• Most catalog sizes• All lettering removed and sidewall polished to

a smooth surface• No material is removed from the sidewall• No unwanted or inappropriate names• Gives your tires a nice, clean look

•You are able to use a finish of your choice! Youcan choose between flat, satin, semi-gloss orglossy. Please note that all smoothies leavethe factory with a satin finish. You can go toyour local retailer and purchase the finish ofyour choice.

Blackwall SmoothiesBlackwall SmoothiesBlackwalls don’t have to look boring. Our Smoothies TM

are the sharpest looking blackwalls ever... high perform-ance radials completely cleaned of all lettering.Thesesmooth-sidewall tires look absolutely great shined-upwithout all that distracting lettering on the sidewall. Ifdetailing is your thing, Smoothies TM are your tires. Theylook terrific on a rod or custom.

No more boring, unsightly black tires

For Pre 48 CarsOur smoothy processremoves all letteringfrom one tire sidewall.

Smoothies aredesigned for pre 1948cars. For cars after1948, Federal lawrequires that we leaveall required DOT infor-mation on the tire'ssidewall. This informa-tion will be located inthe lower bead area.

Odd Rodd Creations, Builder Rusty Jackson


“The black wall with a face-lift”

Take The “Bla” Out Of Black

Smaller WhitewallsSmaller Whitewalls

1.6”White 1”White

The last year for the wide-whitewallwas1962. THE BIG THREE changedto the new whitewall standard 1”wide spaced 1” from the edge ofthe rim.We can reproduce this sizeor any specialty width you need.

The 1” whitewall was the mostpopular style ever.

• d” wide raised ring on the outer edge of the whitewall

• Add a touch of elegance

• Gives radials a bias ply look

• Available on most catalog items

• Only from Diamond Back

Every Diamond Back Is...A Work of Art!

The Beauty BarThe Beauty Bar


215/75R15 1” White1.3” White1.6” White

235/75R15 1” White1.6” White2” White See Cadillac style chart on next page Catalog Pricing

StyleA

StyleB

235/75R15 Style A-BDiamond Back II page 5

* Other sizes available upon request

Cadillac Fitments1962-1964 1”Wide1965-1966 Style C1967-1970 Style A1971-1974 Style B1975-1976 2”Wide1977-1978 1.6”Wide

For 60’s - 70’s Luxury CarsSpecialty Wall DesignsSpecialty Wall Designs


Special Design: 1965-1966 ThunderbirdsSpecial Design: 1965-1966 Thunderbirds

This Red-White combination has the samedimensions as the original equipment

815x15 Firestone Deluxe Champion

215/75R15 Diamond Back II Page 5Diamond Back M5 Page 9

Style C - Triple Stripe

Special request?We can duplicate

all whitewall designs!

Every Diamond Back Is... A Work of Art!

37

Never run tubes. That’s like stepping back 40 years in technolo-gy. If you still insist on bias ply tires, just make sure they’re tube-less. The chance of a tube failing is much greater than a tubelesstire failure. Why? Tubes create heat and friction, and don’t dis-sipate heat well...and a tire’s worst enemy is heat. Also, over

time, tubes “grow” and become too large, and they actuallydevelop creases — and then they split. If a tube is puncturedor fails, air loss is immediate, giving you little or no time at all toreact. Often, a tubeless tire can be driven for a while with apuncture.

My first question is, “Why would you want to?” But yes, you candrive the car down the road but remember in the event that youmust execute a serious emergency maneuver, you can easily losecontrol of the car and the results could be disastrous. The two

different tires have vastly different handling characteristics, and aloss of adhesion in either the front or rear could mean lossof control. The difference in the performance characteristics ofthe two types of tires is enormous. So this is an unsafe practice.

The Use Of TubesThe Use Of Tubes

What About Mixing Bias Ply Tires With Radials?What About Mixing Bias Ply Tires With Radials?

CAUTION: If you must use tubes carefully examine the inside linerof the tire and remove any manufacturers labels. If not removed,these labels could cause a tube failure resulting in rapid loss of air.

IMPORTANT INFORMATIONIMPORTANT INFORMATIONCClleeaanniinngg TTiippss (NO bleach)

One of the first things you will notice is that Diamond Back Classics are extremely easy to clean. Most whitewalls turn dingy oryellow because of the leaching of chemicals (mostly anti-oxidants) into the white material. Because our process uses a butyl lin-ing to stop chemical leeching, you only have to clean the surface dirt.We recommend frequent cleanings with an abrasive clean-ing pad. A fine or medium sanding sponge works well.These are available at most hardware stores.

Any good cleaner works OK - Castrol Super Clean, 409, Simple Green, Greased Lightning - just to name a few. Avoid cleanersthat contain bleach. Prolonged use of these cleaners can “dry” the whitewall surface. Do not use products such as Armor All onwhitewall.This could cause slight discoloration.Whitewall surfaces tend to “dry” with time, heat, ozone, etc. A vigorous cleaningperiodically will get rid of the dry surface and help maintain the tire’s beauty. Don’t be afraid to scrub.

AAiirr PPrreessssuurreeModern p-metric radials are designed for higher air pressure.This reduces rolling resistance, reduces heat build-up, and improves your car’ssteering response. It also helps prevent damage to your whitewalls. Because of so many applications, specific air pressures cannot be recom-mended. A good setting for most applications is 35 psi COLD. Remember, air pressure fluctuates with temperature change - frequent pressurechecks are recommended, especially when beginning a long trip.

For the street-rodders who frequently use smaller front tires and for the resto-rodders who select smaller tires to achieve that “certain look,” werecommend higher air pressures. Diamond Back offers a large variety of smaller radials designed for higher air pressures – i.e. “H” or “T” speedrated. Remember, your front tires do most of the work.Tires designed for higher pressure (40-44psi) should be considered.

Item must be returned in new condition within 30 days after receipt and the customer pays freight both ways. If item isopened but returned within 30 days, customer pays freight both ways and a 15% restocking fee. If item is damaged bythe customer or one of his agents, such as a tire installer, there is no return. If tire is damaged by a carrier, such as UPS,do not accept.

- No Returns On 17” – 18” – 20” Sizes – Please Measure Carefully

- No Returns Or Exchanges On Special Widths Or Non-Catalog Items

RETURN INFORMATIONRETURN INFORMATION

38

Optional Extended Warranty – * Road Hazard – 4 Year Coverage

Our Hassle Proof WarrantyOur Hassle Proof WarrantyDiamond Back has become the choice of informed buyers. Our quality con-trol is so strict that warranty issues seldom arise. If they do, we want you tounderstand the exact terms of our warranty. Tire warranties for the “life ofthe tread” are empty and tell you nothing. We want to be more specific.

• All Diamond Back Classics are guaranteed for 4 years against defects in workmanship and materials.

• Warranty does not include tires run out of alignment, abuse, underinflation, incorrect sizing or damage caused by impropermounting procedures. Limited warranty does not include road hazard.

• Warranty applies only to the original purchaser.

• Warranty does not cover stains caused by stacking or other topical stains caused by neglect.

• All warranty items honored by Diamond Back Classics - not original manufacturer.

• Extended warranty covers road hazard.

Time Replacement Cost Time Replacement Cost

1 year no charge 3 years 50%2 years 25% 4 years 70%

Terms of limited 4-year warranty - Pro-rata cost replacement:

• Pro-rata replacement based on current price.• Freight charges are pro-rata

Time Replacement Cost Time Replacement Cost

1 year no charge 3 years no charge2 years no charge 4 years 50%

Terms of Extended Warranty

A SMART CHOICE!

Limited Warranty Terms

13” - 15” Sizes16” Sizes

17” - 18” Sizes

• Return of damaged tire may not be necessary

• Claims can be handled with digital pictures in some cases

Larger Sizes N/A

* Unrepairable tires due to road hazard - i.e. cuts, snags, sidewall damage.

* Simple, repairable punctures not included

39

Always check rim tolerance. If you have purchased new rims that does not insure that theyare perfect. There are two components of a rim, the hoop and the center. If these two com-ponents are not welded together perfectly, you could experience a situation in which the tirelooks to be out of round or crooked.

Beware of the center hole of the rim. The center hole has no function and many times, espe-cially with new rims, the center hole can be slightly off center. What centers a rim are the boltholes, not the center hole. Most modern tire stores have mounting hardware to center thetire/wheel assembly onto the balancer using the bolt holes, not the center hole. This isreferred to as lug centric balancing. Always use this method!

Minor problems can be solved by breaking the tire off of the wheel, rotating the tire 180degrees on the wheel, re-lubricate the tire beads to insure proper seat and re-balance. Thisprocedure can really help.

Always use qualified shops that have well calibrated equipment!

How to Solve Balance ProblemsHow to Solve Balance Problems

The Tread Act of 2000 requires tire manufactur-ers to permanently mold certain information onboth tire sidewalls. This information is the sameon both sidewalls. Because of our process, thisinformation is removed from one sidewall only.This information includes tire size, maximumpressure recommendations, size, brand, the word“radial” and the manufacturers DOT number.

The National Highway & Safety Administration(NHTSA) has allowed us to continue to producetires for vehicles built prior to 1976. ThatFederal standard is FMVSS109. All tires for vehi-cles manufactured in or after 1976 must complywith standard FMVSS139, which requires differ-ent labeling. This standard is more stringent onperformance testing; meaning tires are subjectedto higher speeds to achieve certification.Ironically, Diamond Back, because of its process,

uses only tires that are certified to the higher per-formance standards of FMVSS139. The majorityof tires sold by the competition cannot make thisclaim. If their product description specifies “forpre 1976 vehicles”, those tires are labeled andtested under the less strenuous standards ofFMVSS109. Remember, all tires that DiamondBack uses have been certified under the new,more stringent performance and endurance stan-dards. *FMVSS139 (Tread Act of 2000). Our fin-ished products have been submitted and passed100% for endurance and speed testing for the lat-est standard.

Unfortunately, we can not knowingly acceptorders for vehicles built after 1976. Why? It’s alabeling issue. Please specify the intended vehiclefitment, including year manufactured, make andmodel when ordering.

* Important Consumer Information* Important Consumer Information

Always mount from the side withthe shortest distance to the dropcenter.

DropCenter

ShortSide

WARNING!WARNING!Avoid Rim Damage During Mounting

Balance issues almost never occur with our productsbut if they do, here are some helpful tips.

Did you ever buy tires for your clas-sic car from a specialty tire compa-ny, with a "Big Brand Name" on thesidewall? I'm sure you felt goodabout that. After all, you thoughtyou bought the best. Or wait aminute...did you? Like most folks,you assumed you bought a tiremade by the tire company whosename is on the sidewall. Well, if itwas a whitewall, redline, or similarspecialty sidewall tire with a bigmanufacturer's name on it, it’sunlikely that they made it! Here'swhat I’m talking about:

The big-name U.S. tire manufactur-ers are always taking old molds outof service for various reasons.When they are no longer useful tothose big-name companies, they areoften sold. These molds are thenreplaced with new ones that oper-ate better and make a better tire.So who buys those old molds?Classic tire companies, among

others. The molds are then placedin small factories, many of whichare in foreign countries. Nowthey’re made privately, but withthat big brand name still on theside. It’s all legal. But the tires arenot made by who you think.

I’ll just say this: Radial tires have tobe precisely built, and the moldsmust operate perfectly, so I don'tthink it's a good idea to re-usemolds that are outdated. The truthis, the major manufacturers won'tuse outdated equipment.

So the original radial tire molds aretaken out of production, and theyare sold. They are then used by asmall manufacturer to make tireswith the big company's name stillon them, which they do underlicense. So just don't assume thename on the sidewall tells you whomade the tire. It doesn’t. Alwaysask.

The Name Game: Things Are Not Always As They AppearThe Name Game: Things Are Not Always As They Appear

Photo Courtesy of Gary Meadors

Photo Courtesy of Jo Dunn

40

All Diamond Backs are made to order because there is noinventory. Finished tires stored in a warehouse are suscepti-ble to getting dusty, dirty or getting scuffed. Our whitewallsare brilliant white and built to stay that way. Please order

Reminder - Order EarlyReminder - Order Early

Removing Tire Blue ProtectantRemoving Tire Blue ProtectantThe blue protectant that we use on our tires is water soluble.In order to remove it, simply soak the tire with water and let itsit for a few minutes. All blue should dissolve. If some blue is

left, use a wet sponge and scrub. No cleaning solution is neededand in fact, it could create more difficulties. Do not use soap.

early to allow us time to build your tires. Average deliverytime is 2-3 weeks. Diamond Backs are worth the wait! Justask someone who has them or log on to the many chatrooms available. Ask about our tires!

DDoo NNoott LLeeaann oorr SSttaacckk WWhhiitteewwaallllssWhitewalls are susceptible to staining. Most whitewalls that are damaged are due to leaning or stacking. Newtires are loaded with a variety of chemicals, and they will still have a small residue of mold release used by themanufacturer. These chemicals will permanently stain your whitewall. Once it is stained, it will remain yellowand cannot be cleaned. Whitewalls require extra caution when handling or storing. Handle with care!

MMeeaassuurriinnggTo measure whitewall width, the tire must be inflated. Due to a number of factors, widewall widths mayvary up to 1/16 of an inch. Whitewall width may vary slightly due to rim flange coverage. Not all wheelflanges are the same.

41

No one has ever identified or explained how a radial tire can actu-ally cause additional stress on a rim. I’ve read and listened to opin-ions and that’s all they are is opinions unsupported by scientific test-ing data. I believe this myth is backwards. I believe radials cause lessstress on rims than the old rigid bias ply tires.

The Department of Transportation has created the new FMVSS139 (Tread Act)* for the purpose of “establishing new and morestringent tire performance requirements that apply to all new tiresfor use on light vehicles.” Here is the DOT’s assessment of the dif-ferences in performance characteristics between bias and radialtires.“A bias passenger car tire carcass is typically made up of two orfour plies of cord material that run from bead to bead at an angleof approximately 35 degrees to the centerline of the tire.This typeof construction provides a very strong, durable carcass for the tire.Because the ply cords criss-cross and all the cords are anchored tothe beads, the carcass is stiff and relatively inflexible. This type ofconstruction prevents the different parts of the tire from actingindependently of another when forces are applied to the tire. Asa result, a bias construction is susceptible to impactbreaks because it does not easily absorb road irregular-ities.” This causes more rim stress.

“By comparison, a radial passenger tire carcass is typically made upof one of more plies of cord material that run from bead at an angleof approximately 90 degrees to centerline of the tire. Because thecords do not criss-cross and because the opposite ends of eachcord are anchored to the beads at points that are directly oppositeeach other, the radial tire carcass is flexible. The radial tire is rein-forced and stabilized by a belt that runs circumferentially around thetire under the tread. This construction allows the sidewalls to actindependently of the belt and the tread area when forces areapplied to the tire. The “independent” action is what allows thesidewalls to readily absorb road irregularities without overstressingthe cords. This ‘independent’ action allows two important things tohappen (1) the tread of a radial tire remains fully in contact with theroad over the entire tread width, and (2) the ply cords andsidewall are able to absorb forces without exerting thetwisting force on the beads that are exerted by bias con-struction.”

Because a radial tire is so flexible, it must have some type of lowersidewall support. Remember the upper third of a radial’s sidewall

does all the work. The lower two thirds of the sidewall is support-ed by the portion of the tire called the Apex.The Apex consists oftwo stiff, triangular shaped pieces of rubber that extend upwardfrom the bead where the tire sits on the rim.The apex is thickest atthe bottom and tapers upwards to a small point. The sole purposeat the apex is stability and support.The apex is a very strong, rigidpiece of rubber – so rigid that it becomes the principal componentof the run flat tire. How does the apex relate to rim stress? Simple- it transfers road force up to the flex area so that the flexible uppersidewall can do its job of absorbing road forces without “exertingthe twisting force on the beads that are exerted by bias construc-tions.”

Don’t forget about inflation. Radials typically run about 10 psi morethan the old bias tires. A poorly inflated radial causes more drag andwill create more rim stress. A properly inflated radial with morerigid sidewalls will have less rolling resistance and less stress on therim.

The following paragraph is from Old Cars Weekly – 12-6-07 issue.Here’s a condensed version of what someone has written:

“Rims for bias-ply tires and radial tires are made out of differentalloys. Rims for bias-ply tires cannot be used on radials. The forcesexerted by bias-ply versus radial-ply are different and needs rimsmade specific for each application. Otherwise there is over flexingleading to rim metal fatigue and breakage. One can tell bias-ply, radi-al-ply and disc brake rims by their markings.”

I witnessed the transition from bias to radials and I don’t agree withthis letter. The letter also says,“ Rims for bias-ply and radial tires aremade of different alloys.” Again, I disagree. There were no indus-try standard markings to identify rims for radial use orrims for bias use, and no alloy changes just to accom-modate radial tires.

In summary, all rims are subjected to stress (flex). The stress (flex)point can change its location on the rim (bead seat) depending onmany factors – tire size, tire width, inflation, vehicle weight, bias orradial tires. If you have a 50’s or 60’s car, you would be safer withnew rims simply because you don’t know the history of the olderrims. In the last sentence of the letter someone wrote to Old CarsWeekly he states, “If you cannot find the correct rims you shouldcontinue to use bias-ply tires.” This is at best very bad advice, sim-ply because of the safety advantage of radials versus the poor han-dling characteristics of bias tires. If you are using old rims, you couldhave a rim failure. The chances are extremely remote, and in myopinion, the cause won’t be whether you’re using radial or bias tires-it’s just an old rim.

Bill ChapmanDiamond Back Classic Tires

*CFR Part 571Docket #NHTS-030-15400RIN 2127-A154www.nhtsa.com

Stress On Rims: Radials vs. Bias Ply TiresStress On Rims: Radials vs. Bias Ply Tires

2007 NSRA Giveaway Car-Photo Courtesy of NSRA

There are really two ways to make a whitewall radial tire. Youcan do it while you’re actually making the tire or you can add thewhitewall to a finished tire as a final step. Remember, white rub-ber is just ornamental and has nothing to do with strength orperformance. The advantage to adding it after the tire is made

is that you can put a whitewall or color stripe on any tire youwant, including 17”, 18” and 20” tires — and with much tighterquality control. The versatility is endless and tires are all currentproduction. This is how we do it at Diamond Back. We’re sim-ply the “final step”.

We star t by mounting the new tire on a special machine that spinsit at high speed. Using our own special attachments, we rough upthe sidewall surface so it’s no longer perfectly smooth. The tirethen goes on to where a special bonding agent is applied to thesidewall area that prepares the tire for the vulcanization process.

Because of the accuracy of our preparatory machine, and becauseit turns at such a high RPM, any abnormalities of the tire can bespotted immediately. Because we use major manufacturers ourrejection rate is near zero.

The Two Whitewall Manufacturing MethodsThe Two Whitewall Manufacturing Methods

Step #1: PreparationStep #1: Preparation

Buffing the sidewall.

A whole section of our plant is devoted to the vulcanizationequipment that makes the whitewall a permanent part of thetire. Because the vulcanization process is so effective, if you triedto separate the whitewall from the tire afterward, the tire itselfwould become damaged. It's a marriage that lasts forever…avery permanent bond.

Our biggest competitors tell folks that Diamond Back's white-walls are "glued on". They’ve even told people they’re painted onand even “ground out.”They say this to make us look foolish, so

you’ll think we glue whitewalls onto tires using contact cement.It's not a true thing to tell people but at least now you know thatvulcanization isn’t “gluing on”. It’s the process every tire com-pany uses to build tires. Remember, our competitors don’t sellgenuine brand names but rather, the "licensed" tires that theyhave made with the old molds.

So if you forget everything else, just remember that once thewhitewall is vulcanized to the tire, it's on there forever (just trypulling one off the tire sometime).

After vulcanization, the material has to be trimmed to the exactdesired width, depending on what you order. Whether it's a 22"whitewall for a '57 T-Bird or a 32" whitewall for that big 40'sclassic, it makes no difference. The fronts and rears can bematched in whitewall width even if your tires are different sizes(as with hot rod big & little combinations). That's the nice partabout trimming each whitewall or redline to order.

All of our finishers are equipped with laser guides so that all

widths are held to close tolerances. Once the trimming is com-plete, a series of finishing steps in the final process makes themnice and smooth.

Another advantage to high speed finishing is that it immediatelyshows us if there’s any kind of problem with the tire’s trueness(runout). The operator can spot it right away and he simplyrejects the tire. It seldom happens.

Trimming The WhitewallTrimming The Whitewall

VulcanizationVulcanization

42

World’s Most Beautiful Tires

Wide Whites Redlines Goldlines Bluelines and Many More

Net Driven > Home - 2015 DB Catalog Canada · 2016. 3. 18. · *Intended for pre 1976 vehicles...

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