one more thing tocheck with reguards to binding. if you take the wheels off for travel.....one time I put the wheels on at the track and I didn't notice the hex had unsnapped from axle pin...lettk.g the cva pin slide out partially. when I installed wheel and tightened wheel nut, I was tightening pin right into the outside of the bearing because the pin had slipped out. this caused major binding and could of easily broke cvapin. this is probably why some have broke theirs in the past.