Dan ive got a few 73 spurs on the way to make gearing a bit easier for brushless stock. Im also looking for gearing advice for a sp17.5 . Im starting with a rollout of 58. Does this sound in the ballpark?
Dan, found some info saying start rollout about 36-40. Start with pinion around 23 with 73 spur.
LRP, Intellect, Futaba
Last edited by rcstunt101; 08-03-2008 at 02:38 AM.