Got a set of used 28x10.5S slicks of a friend earlier this year. Put em on my car,made necessary "adjustments" to inner fenders and such. Ran em 4 races no rubbing issues. Noticed at the last race very minor threads showing on driver side side wall. Forward on a couple weeks to a car show,had a buddy riding with me and tire rubbed outside fender lip. I thought extra weight was the problem. Went over all my suspension and everything is tight and hasnt appeared to move. IDriving it today and with just me its rubbing on bumps which it never did and got to thinking about the small cords showing on the sidewall,can the slick be deforming and thats why its rubbing?Going to a 27" tire next year,just wanna find out if this is possible or do i have something else going on?? Sorry for the long post. Thanks guys.