Originally posted by Ducati-Rider
I've picked up a BMI TC4 to run in onroad asphalt 27Turn
stock, rubber tires - 50' straight, tight outdoor, medium
Where would you start with pinion gearing for a Epic
Binary stock motor - 64p,?
BTW - with a TC3 monster stock - I run 25-27 tooth pinion
on a 48 pitch gearing.
bill in ca
Try a 100t 64 pitch spur and a 35 tooth pinion that should be a good starting point.
Your final drive ratio will be a 7.14 with this gear combo
Your roll out will be a 27.7.
So that should be pretty close. You will have to test a little bit more to see what works. Try not to get the motor too hot. Nothing over 190 degrees. Also a motor will run hot when it is undergeared as well.
Hope that helps