This is a very simple mod, but one of the best mods for the dollar that you can do for drag racing. Swap out the studs and don't forget to locktite them.
My 60 ft times whent from an inconsistent 1.41 to 1.46 down to a very consistent 1.38 to 1.41. I would recomend this mod to everyone. Its easily worth almost a tenth of a second in the quarter mile. There is a lot of money spent on these bikes that doesn't do a damn, but the cushion does.