TJ and Gary- a buddy is letting me try out a 40mm axle this weekend. I hope these pictures upload okay, but I was trying to show the tire wear.
The rear is the right rear on a counter-clockwise sprint track.
The front is the left front on the same track. the right front is wearing evenly across the tire. Someone at the track suggested that the uneven front tire wear might be indicative of a bent spindle or frame?