Question. I'm currently running a silver can with stock gears and no mods to the chassis. Biggest pinion I have that will fit is 22t. Like many others, I'm having the problem of the motor bumping against the battery door post. Was going to shave the top deck a little but it seems this will give me maybe about 1 mm more room which isn't enough to be able to put a bigger pinion on. So I ordered the gear kit, that I should receive today or tomorrow, and plan to use the 35t spur. Does anyone know what will be the biggest pinion I could use with this? Another question is one I asked before but found two different answers. How many teeth are on the stock spur? The reply I got back was 41t but then a few posts later I saw someone saying it is 40t.