actually i already tested the spedo , and rubbing it doesnt throw off the speedo by much if anything and the rubbing doesnt happen i did a complete circle with the wheel turned all the way to each side to check if it rubbed, and we have those speed check radars on the road tested it with that and beside my friend with stock tires on his car so if anything it's off by 2 or 3 mph . but to me they look pretty good.