Wear on both edges:
Under Inflation


Wear in center:
Over Inflation


Wear on one side:
Misalignment


Sawtooth edges:
Misalignment
Do the edges of the tread take on a sawtooth or feathered appearance? This is caused by erratic contact against the road. The solution is toe-in or toe-out alignment correction.


Cups or dips in the tread:
Worn Parts

Wear On Both Edges: UNDER INFLATION If a Tyre looks like this, it may be under inflated. The worst enemy a Tyre can have is too little inflation pressure. Under inflation reduces tread life through increased tread wear on the outside edges (or shoulders) of the Tyre. It also generates excessive heat that reduces Tyre durability. Finally, it reduces fuel economy through increased rolling resistance (soft Tyres cause your vehicle to work harder). Check your Tyres regularly for proper inflation. Abnormal Tyre wear may also be due to misalignment or mechanical problems. Many Goodyear retailers can provide expert diagnosis and repair.
Wear In Center: OVER INFLATION When a Tyre is over inflated, the center of the tread bears most of the load and wears out faster than the outside edges. Uneven wear reduces the useful life of a Tyre. Check your Tyres regularly for proper inflation. Abnormal Tyre wear may also be due to misalignment or mechanical problems. Goodyear retailers can provide expert diagnosis and repair.
Cups or Dips in the tread: WORN PARTS Cupping (also called dipping or scalloping) is most common on front Tyres, though rear Tyres can cup as well. It may be a sign that wheels are out of balance or that suspension or steering system parts are worn out. Many Goodyear retailers can provide expert diagnosis and repair.