Tyre Wear question

Jun 14, 2003
10,442
0
0
my rear tyres are more worn on the outside of the tyre than the inner side.

they are at the correct pressures. 32 PSI and its a FWD car so the rears just trail. normally i might expect it to be the other way round, maybe for handling purposes.

is something set up wrong? or is it just natural wear from cornering, bearing in mind its even on both sides.
 

Thorny

Golden Member
May 8, 2005
1,122
0
0
Usually wear on the outsides of the tires means that they are underinflated, or perhaps overloaded. AFAIK the only thing that will cause wear evenly on the outside is underinflation.

EDIT: Do mean even on the outsides as in outsides of the car, or outsides of the tire. If the wear is only on one side of the tire you have an alignment issue. If the wear is on both outside edges of the tire it's an inflation issue.
 

spidey07

No Lifer
Aug 4, 2000
65,469
5
76
This can be normal for some cars as long as the difference is minor.

Otherwise have your camber checked.
 

Sukhoi

Elite Member
Dec 5, 1999
15,348
106
106
Outside as in both outsides of each tire, or on just the outsides of the car?
 

shabby

Diamond Member
Oct 9, 1999
5,782
45
91
I always wondered, why do the europeans spell tires with a y then an i.
 

funboy6942

Lifer
Nov 13, 2001
15,368
417
126
If your saying just the out side, as in one side near the outer fender, is wearing it is normal and caused by cornering and why your supposed to rotate your tires every 6K miles.

If your tires are losing tread on both the inner and outer edges, inner wheel well side and outer fender sides of the tire, then that is caused by under inflation. But again if just the outer edge (one side, the outer side), is shorter in tread life rotate your tires more often and stop whipping around corners as fast as you do ;)
 

JEDI

Lifer
Sep 25, 2001
29,391
2,738
126
Originally posted by: otispunkmeyer
my rear tyres are more worn on the outside of the tyre than the inner side.

they are at the correct pressures. 32 PSI and its a FWD car so the rears just trail. normally i might expect it to be the other way round, maybe for handling purposes.

is something set up wrong? or is it just natural wear from cornering, bearing in mind its even on both sides.

buy a new car to fix your problem

throwing $ at the problem always fixes it. look at the $Trillion$ we spent at Iraq.
 
Jun 14, 2003
10,442
0
0
Originally posted by: Thorny
Usually wear on the outsides of the tires means that they are underinflated, or perhaps overloaded. AFAIK the only thing that will cause wear evenly on the outside is underinflation.

EDIT: Do mean even on the outsides as in outsides of the car, or outsides of the tire. If the wear is only on one side of the tire you have an alignment issue. If the wear is on both outside edges of the tire it's an inflation issue.

outsides of the tyre

tread is physically deeper on the inside portion of the tyre tread (ie the tread closest to the suspension) on the inside its probably a good 3-4mm, on the outside its getting close to being illegal.

only on the rear tyres though, and its pretty much the same on both sides.

ill take them to the garage to get them rotated.
 

RichUK

Lifer
Feb 14, 2005
10,341
678
126
Originally posted by: otispunkmeyer
Originally posted by: Thorny
Usually wear on the outsides of the tires means that they are underinflated, or perhaps overloaded. AFAIK the only thing that will cause wear evenly on the outside is underinflation.

EDIT: Do mean even on the outsides as in outsides of the car, or outsides of the tire. If the wear is only on one side of the tire you have an alignment issue. If the wear is on both outside edges of the tire it's an inflation issue.

outsides of the tyre

tread is physically deeper on the inside portion of the tyre tread (ie the tread closest to the suspension) on the inside its probably a good 3-4mm, on the outside its getting close to being illegal.

only on the rear tyres though, and its pretty much the same on both sides.

ill take them to the garage to get them rotated.

Have the camber on the rear axle investigated and re-aligned if need be at your local garage.

It's possible you could have positive camber on both the rears wheels causing this uneven tyre wear.
 

spidey07

No Lifer
Aug 4, 2000
65,469
5
76
Originally posted by: RichUK
Have the camber on the rear axle investigated and re-aligned if need be at your local garage.

It's possible you could have positive camber on both the rears wheels causing this uneven tyre wear.

And keep in mind some cars purposely have positive camber for performance reasons and can have uneven wear.
 

RichUK

Lifer
Feb 14, 2005
10,341
678
126
Originally posted by: spidey07
Originally posted by: RichUK
Have the camber on the rear axle investigated and re-aligned if need be at your local garage.

It's possible you could have positive camber on both the rears wheels causing this uneven tyre wear.

And keep in mind some cars purposely have positive camber for performance reasons and can have uneven wear.

That?s correct, however, for track cars it would be negative camber.

Positive / Negative camber

The negative camber configuration is quite noticeable on some of the BTCC Touring Cars I?ve seen on TV.

The main purpose is to compensate for the hard cornering to allow the tyre to achieve it?s maximum footprint around the corners on the track. This improves the grip through the corners, which obviously improves performance and track times.