whats the cause of this tire wear? Options

[diegohiga]

So my both rear tires looks like this one on the picture.
I have megan racing coilovers and I know this wear sometimes is caused the the suspension and not because of toe, camber or caster.
Bt if my suspension is only 1 year old what could be causing this?

When I pass my hand around the tire I feel the thread going up and down



This post has been edited by diegohiga: Mar 19, 2013 - 8:24 PM

[6strngs]

It's called cupping, and it's usually just cheap tires, the tires not being rotated often enough, the suspension being excessively bouncy (blown shock), or in some cases from the wheel being bent or very out of balance. You'll get all kinds of noise and vibrations if you stick those on the front of the car, try to keep them on the rear until you're ready to get some new tires.

This post has been edited by 6strngs: Mar 19, 2013 - 8:53 PM