gearing for 13.5t
 

need to know what gearing to use on a mad rat running a 13.5 novak brushless

31 or 32 I run a 10.5 on a 28

On th e mad rat you will have a 86 spur try to take the 80 of the x pro ;)

spur is an 80t, will try a 30 and see what it`s like. thanks for the info.

Im using 78/27 with success on a medium indoor track. So the 27 or 28 would be good for the 80T

Where did you find the 78?
Did you use an AE or kyosho?

Yes use a ae spur.

ive been running a 10.5 geared 27/80 so i would def go to a 29 or 30t with a 13.5 If u need more adjustment to slide the motor back. Take a dremel and and dremel the slots for more adjustment to fit a bigger pinion!:D

did you use all the ae slipper or you ajust the spur?
did you have a pic

my grandson ran the mad rat today, used a 28t pinion and it ran very well with no problems.thanks for the info.:thumbsup:

See this for the AE Spur gear. I'm now using the TQ/AR spring even with the 4mm shims between the tranny and motor plate.

http://www.rctech.net/forum/electric...ml#post7809933
And
http://www.rctech.net/forum/electric...ml#post7809933

Thanks for the information :thumbsup: