Originally Posted by
runinonempty
Hi Guys,
Can you guys please tell me what size pinion should I be using for a 17.5bl stock motor on medium size track using rubber tyres and 48 pitch 87 tooth spur.
Thanks
i think its eaiser to find 64 pitch... i run a 96/51 which gives me a 3.76. 17.5 you need to get down to the low 4's high 3's with the final drive.