Originally Posted by markg

Hey Guys - Sorry if this is posted previously. Went back a number of pages but didn't see anything. I'm running the TC5R on asphalt, and we are going to racing stock (17.5 Brushless). Gearing on this motor is in the rage of FDR 3.5. Anyone have any suggestions on spur pinion combination that will achieve this FDR? Can the center pulley be changed to a larger one so the Spur/pinion sizes aren't so ridiculous?

I've found spur pinion combos in 64p that will work, barely, but nothing in 48p. Any suggestions greatly appreciated.

Thanks for any help. We were racing 10.5 and just switched, and I'm having a hard time finding sources for spur/pinion to get a 3.5 fdr.

Thanks