Originally Posted by Cody01

I just ran mine for the first time and these seem way undergeared. I ran a 13T pinion on Hyper 10sc and it seemed alot faster. Does anybody know if the spur tooth count is differant from the TT to the SC. Maybe I could put the 10sc steel spur on the TT to make it worth racing tomarrow. Now i see why guys are running 4.5 motors and like 16T pinion. I wish i had a 16 or 17T pinion in my junk pile. Other than that I thaught it had real nice track manors and handling was on par.