Originally Posted by Got Xray?
Ok robbie,you said you used 21/84 on an open track with foam tyres,
Im using it on a medium track so maybe 1 tooth off for that and another 2 off because im using rubbers,so does 18 or 19 sound alright?
Didn't you just say you were going to go with the 26 tooth pinion?
I would start there. But every motor is different, even if they are the same motor... monster -vs - monster. Maybe up to a few teeth different between the two depending on the motor itself. You just have to basically guess, and then start changing pinions from there.