What causes Sawtooth tire wear?

“Saw-tooth” wear is a wear pattern caused under normal usage with normal suspension settings. These shoulder blocks can wear to leave the “sawtooth” pattern as a result of rolling mechanisms under certain operating conditions.

What causes stepped tyre wear?

When it comes to saw tooth wear, the main causes include: A difference in the dampening set up of the suspension and the tyre system. Uneven distribution of pressures such as in the case of a front wheel drive car where the rear tyres may suffer from saw tooth issues. Having directional tyres fitted the wrong way round.

Why do tyres wear on inner edge?

The most common reason for tyre wear on the edges is underinflation. If you’ve noticed wear on the inside, check the outside of the tyre too. Underinflated tyres tend to distort the tread away from the road in the centre, which results in the edges becoming worn.

Why do my rear Tyres wear on the outside?

Tire tread wear on the edges of a tire will typically indicate inflation pressures are lower than specified. When a tire is under-inflated, the contact patch grows and the load is carried by the outside edges of the patch.

Can you fix uneven tire wear?

Sadly, once an unusual wear pattern develops on a tire, it will not “wear in.” If the tires still have well over half their tread remaining, you could try having the tires shaved or “buffed” on a special machine that shaves off the cupping, leaving a like-new remaining tread surface.

What causes TYRE wear on outside?

Front tires wearing on the outside edge is usually a result of aging coil springs. As they lose height, so does the vehicle, causing the whole suspension to misalign, especially in camber. If the leaf springs are also sagging or wearing out, they cause caster misalignment, which may worsen the situation.

What causes car tyres to wear on the outside?

Why are my tyres worn on the outside edge? If your tyres are worn on the inside and outside edge, they could be under-inflated or leaking. This could cause the edges of your tyres to have more contact with the road than usual. Cornering too fast can put more pressure than expected on the edges of your tyres.

What can make tyres illegal?

What Things Can Make Your Tyres Illegal?

• Low Tread Depth. One of the most regular problems that people face with their tyres is letting the tread depth get too low.
• Excessive Tyre Wear or Sidewall Damage.
• Mixing Tyre Ply.
• Under or Over Inflated Tyres.
• Improper tyres for the vehicle’s use.

Is outside tyre wear illegal?

It is also important to remember it is illegal to use a spare tyre outside of its stated limitations. Worn tyres are more likely to lose air pressure much more quickly than a tyre with deep tread.

What causes irregular wear on tires?

Uneven tire wear is usually caused by improper alignment, overinflation, underinflation or a worn out suspension. Tires are an extremely important component of your car, and it’s a good idea to check them periodically to see how they’re faring. …