Radial Peeled Cap

Look forLook forLook forLook for: : : : Tread or some of tread missing from casing. Belts usually still in place and tire is usually holding air. CauseCauseCauseCause: : : : Loss of adhesion of retread from casing.

Bias Peeled Cap

Look forLook forLook forLook for: : : : Missing or partially missing retread. There may be some cord damage. CauseCauseCauseCause: : : : Loss of adhesion of retread from casing.

Shoulder Separation

Look forLook forLook forLook for: : : : Some or all of retread missing from casing. Usually belts are damaged and sides of casing are pulling away from the cords. CauseCauseCauseCause: : : : Weakness in casing or possible leak into sidewall.

TIRE DEFECT ANALYSIS

Radial/Bias Ply Casing Separation

Look forLook forLook forLook for: : : : Retread and belt packages pulling away from casing. May see some loose cords. CauseCauseCauseCause: : : : Weakness in casing or possible under inflation over time.

Retread Separation or Partially Peeled Cap

Look forLook forLook forLook for: : : : Tread edge lifting up or what may look like an air pocket under the tread. CauseCauseCauseCause: : : : Probable cause is improper curing during the retread process.

Skid/Skid Flat

Look forLook forLook forLook for: : : : Flat spot in tread area, possibly worn down to or through the plies of the casing. CauseCauseCauseCause: : : : Trailer brakes locked up causing tires to skid in one spot.

Run To Destruction: Shredded

Look forLook forLook forLook for: : : : Casing damaged beyond the point where the cause of failure can be determined. CauseCauseCauseCause: : : : Tire has been run on for a considerable distance with little or no air pressure.

Run To Destruction: Sidewalls Only

Look forLook forLook forLook for: : : : Center of casing (tread area) missing or mostly missing, unable to determine cause of failure. CauseCauseCauseCause: : : : Tire was run on for a long distance with no air pressure.

Run To Destruction: Beads Only

Look forLook forLook forLook for: : : : Center of casing is completely missing and casing sidewall has been worn down to near the bead area, unable to determine cause of failure. CauseCauseCauseCause: : : : Tire was run on for a very long distance with no air pressure. In this extreme case, two tires will almost always be involved.

Zipper Rupture (Radial Only)

Look forLook forLook forLook for: : : : Zipper type rupture in tire. (Radial only) CauseCauseCauseCause: : : : Tire was run under-inflated over time and weakened the sidewall cables.

Bias Ply Cords Pulled

Look forLook forLook forLook for: : : : Strands of cords hanging loose from inside of casing. CauseCauseCauseCause: : : : Tire is run on after loss of inflation causing breakdown of inner liner and body plies of casing.

Radial Impact Break

Look forLook forLook forLook for: : : : Straight-line break in sidewall that runs from shoulder toward bead. CauseCauseCauseCause: : : : Impact with pot hole, curb, object in road, etc.

Bias Ply Impact Break

Look forLook forLook forLook for: : : : A break in tire with an X pattern in a bias ply casing CauseCauseCauseCause: : : : Impact with curb or object in road such as a pothole.

Internal Repair Failure

Look forLook forLook forLook for: : : : Retread appears to have peeled, but upon further inspection, casing has been repaired. CauseCauseCauseCause: : : : The repair wasnt done properly and caused the casing to separate.

Sidewall Cut/Snag

Look for: Look for: Look for: Look for: Cuts or penetrations in the sidewall preventing the tire from being put back into service. Cause: Cause: Cause: Cause: Contact with foreign object.

Flap Poor Condition

Look for: Look for: Look for: Look for: Cuts or tears in the flap. This generally occurs on the edges of older, brittle flaps. Cause: Cause: Cause: Cause: Older, brittle flaps tear easily. This condition in the flap generally occurs as the flap is pulled from the tire. CommentsCommentsCommentsComments: : : : Flaps in this condition cause the tube to get pinched and eventually fail.

Look for:Look for:Look for:Look for: Holes or splits in the flap. May have to bend flap to expose a split that has occurred in the center of the flap. Cause: Cause: Cause: Cause: This can occur in new and used flaps. Age, improper mounting practices and manufacturing defects can all cause this condition. CommentsCommentsCommentsComments: : : : Flaps in this condition will cause an eventual tube failure.

Incorrect Use of Tube

CommentsCommentsCommentsComments: : : : The metal piece shown in the picture should be attached to the valve stem afterafterafterafter the flap has been installed. Installing the flap over this piece can lead to the eventual tearing of the flap, ulti-mately causing the failure of the tube.

Flap Failure

Look forLook forLook forLook for: : : : What appears to be a bubble in the liner. Cause:Cause:Cause:Cause: Defect in the liner/casing. Can also be caused by under-inflation. CommentsCommentsCommentsComments: : : : This condition may not be visible from the exterior of the tire when deflated. The bubble should feel thin and it should push down eas-ily. If not, then it is more than likely a casing separation. Look for punctures in the tire that would cause an under-inflated condition.

Liner Separation

Look forLook forLook forLook for: : : : Will appear the same as a peeled cap on a re-treaded tire, except the tire has not been re-treaded. CauseCauseCauseCause: : : : Manufacturing defect or under-inflation.

New/Virgin Tire Separation