odd tread wear

jasunderland · Postby **jasunderland** » Sun Feb 20, 2011 6:52 pm

For some reason, both rear tires are excessivly worn in the middle of the tire.

There is more tread on the inside edge and outside edge of the tire then in the middle... I am talking quite a bit of difference too.

I check the pressure often and they are spot on with the front...

Any thoughts as to why this would be like that?

volvite · Postby **volvite** » Sun Feb 20, 2011 6:57 pm

My thought would have been tire pressure. When is the last time you had an alignment? I would look into your ball joints/tie rod ends/drag link. Most of the time thoes items hurt the outside of your tire. You can always jack up one tire and move it side to side and top to bottom to see if any of those parts are loose. hope that helps.

jasunderland · Postby **jasunderland** » Sun Feb 20, 2011 7:27 pm

I had it up in the air this weekend because I changed the brakes and this is when i noticed that the rear was wearing funny. I did not notice any play in the wheels....

volvite · Postby **volvite** » Sun Feb 20, 2011 7:34 pm

Well now you give us the full information. Your talking about your rear tires. Sounds like you've been burning rubber. ha ha. Rotate the tires and see what happens to the other tires when you put them on the rear. It sounds like a possible tire issue, like the belts have broken loose and making the tire wear funny.

eieio · Postby **eieio** » Sun Feb 20, 2011 8:29 pm

volvite wrote:Well now you give us the full information. Your talking about your rear tires.

That's what he said in the first place: "For some reason, both rear tires are excessivly worn in the middle of the tire."

volvite · Postby **volvite** » Sun Feb 20, 2011 8:49 pm

eieio wrote:
volvite wrote:Well now you give us the full information. Your talking about your rear tires.
That's what he said in the first place: "For some reason, both rear tires are excessivly worn in the middle of the tire."

I see that now. I read to fast. Makes trying to figure out what the problem probably a different story.

Tech · Postby **Tech** » Sun Feb 20, 2011 9:58 pm

Do you check your guage for accuracy? What are you filling to? Do you load up or tow?

Postby **mar1** » Mon Feb 21, 2011 3:42 am

easy way to calculate proper tyre pressure:

get a blackboard chalk and draw a line across the width of the tyre. drive a few meters and see where the chaulk is uneven..

if the chaulk is gone in the middle but not on the sides, then ur overinflating.

if the chalk is gone on the sides, but still on in the middle then ur under.

keep testing until u get it right, THEN measure the pressure and use it always.

jasunderland · Postby **jasunderland** » Mon Feb 21, 2011 6:03 am

My wife had it to the dealer last week for an oil change and when I put them back on after doing the brakes while loaded, they were at ~41.5 psi.

This was filled by the dealer.

My fronts were also at 41 but they are fine.... ?

Tech · Postby **Tech** » Mon Feb 21, 2011 8:40 am

recommended is 34#, I think MAX is 50# (should say on your sidewall). If your at 41 cold, hot will be even higher. I'd say your tires, like me, could lose a few pounds....

Also try a digital guage, analog ones are notoriously off. I check all my guys' every so often. One excessively high tire and the cal. is off by 5-6 pounds.

NVSteve · Postby **NVSteve** » Mon Feb 21, 2011 8:49 am

jasunderland wrote:they were at ~41.5 psi.

This was filled by the dealer.

My fronts were also at 41 but they are fine.... ?

Overinflated, simple as that. Are you running P rated tires?

jasunderland · Postby **jasunderland** » Mon Feb 21, 2011 9:05 am

What I dont get is that if They are over-inflated, why don't the front's wear the same?

They are BGF LongTrail T/A stock OEM tires.

Max PSI is 44.

http://www.tirerack.com/tires/tires.jsp ... &tab=Specs

I will lower the PSI and see how it works.

Tech · Postby **Tech** » Mon Feb 21, 2011 9:09 am

more load in the back? towing? passengers? hard to say.....

skinny2 · Postby **skinny2** » Mon Feb 21, 2011 9:27 am

The front is heavier so it won't make as much of a difference. I have generally found going a little higher than recommended (by car manufacturer...not tire) makes the front wear more evenly.

I just measured my tires this weekend while rotating and I'm also getting very slightly more wear in the center of the rear tires. I'm running 35psi in the rear so 41 would certainly make that worse! I've done very little towing...maybe 50 miles out of the last 7,000 with these new tires. The fronts were wearing perfect. I run the fronts at 38psi and they're perfectly even.

NVSteve · Postby **NVSteve** » Mon Feb 21, 2011 9:30 am

jasunderland wrote:What I dont get is that if They are over-inflated, why don't the front's wear the same?

They are BGF LongTrail T/A stock OEM tires.

Max PSI is 44.

I will lower the PSI and see how it works.

Look at the sticker on the inner driver's door jamb for the inflation values. The reason you have more wear in the rear is because there is no weight back there. Add more weight, the tires flatten out.

odd tread wear

odd tread wear

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