Pinion gear pitch problem

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yachtnutz

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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 !
 

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tntpoof

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your measurements don't make sense to me...1/8" shaft 312 mm s on 5mm does. 32 pitch 48 pitch some odd ball Chinese ones. what rc is this from?
 

yachtnutz

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your measurements don't make sense to me...1/8" shaft 312 mm s on 5mm does. 32 pitch 48 pitch some odd ball Chinese ones. what rc is this from?
I know I’ve never heard of a pitch of 33.9 but that’s what keeps coming up every time on the stock pinion gear ,sorry I measured it wrong it’s a bore of 3.12mm on the stock pinion gear, it’s a crossrc kit !
 
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