Originally Posted By: ARB1977
I've got 45,000 miles on my Revo 2's with 7/32 tread on them. I've noticed some cupping issues going on. I did replace my front shocks and had the alignment done by Toyota. The alignment is straight and the balance is good. I've adjusted my pressures also. I would hate to replace these tires prematurely since my last set I had I sold back to discount tire due to ozone cracking. These are starting to crack too. Sucks parking outside. All four tires are having the cupping issue.
Exactly what do you mean by "cupping"? Is this on the outer edge of the tires pretty much all around it, or do you have one or two "cupped" spots per tire?
Unbalanced wheels or worn suspension components can cause a tire to "bounce". This causes a condition - cupping, scalloping, dipping and feathering - with areas of the tread worn and others not as much. The normally even tread suddenly has peaks and tips every few inches all the way around.
Unbalanced wheels will tend to show wear away from the edges of the tire, while worn suspension components tend to do this on the edges.
If it has four disc brake on it, you might also check to see if the discs are out of round.