yachtnutz
RCTalk Basher
Supporter
Military Veteran
So I have my new Castle Creations sensored motor and the shaft diameter is 5mm and the stock gear is 1.87 bore . I did some calculations and the stock pinion pitch is 33.9 and has 10 teeth , the problem is I can’t seem to find a 5mm bore pinion gear with a pitch of 33.9 , I dont Think I can drill the stock gear up to a 5mm bore it’s to small . Does anyone have an idea what I can do beside changing All the gears in the 2 speed tranny HELP please !