Mod 1 pinion questions
 

are they the same as say a normal 32 pitch 5mm bore? which is what i need for my rc10gt project because i have a wanderer 12s that's going in the truck and i was wondering if that would be the appropiate type of pinon

Mod 1 is a different size tooth. Its what nitro buggies and truggies use. Its roughly 25p. So, you'll need 32p with either a 5mm bore or 1/8th depending on what shaft your motor has.

oh ok well mine is a 12s but has 5mm shaft and rc monster is currently outta 5mm's