[lincpimp]

The stock slash gear is 48p... You can put the jato spurs on for use with 32p, or the revo spurs for mod1. You can use the 5mm bore 32p or mod1 pinions with the bore reducer for use with and 1/8 shaft motor.

32p 1/8 bore selection only goes up to 22t. I would go with the revo 40t spur and mod 1 gears.