Rear ratio / pinion & spur mesh

[Matthewboerner]

I'm trying to gear down and I bought a losi 16t pinion and my motor won't slide close enough to get a proper mesh. Should I up the spur gear a couple teeth or file and drill away on the motor plate? Also my spur gear moves in and out on the output shaft, an ones else's move like that? Thanks!

[Jay-Em]

My spur also moved for a bit. Didn't bother me though.

I opted for a 87t spur ( taken from my SCX101) with an 18t pinion. Works perfect with an LRP vector 8,5 sensored BL. Plenty fast, runs like forever on a 2cell 4ah LiPo, and can still crawl pretty darn well.

[Matthewboerner]

So I drilled and filed on the motor plate and got a little closer, but what I found was more less the stock axial 20t was up against the gear box. It has a decent mesh so I'll run the 16/80 and see what I think. I might up the spur gear a few teeth so I have better clearance away form the gear box. The torque is much better from what I can see so far though. At first I wanted fast and ok crawling, but ive found I like crawling more so I'm slowing it down and upping the torque.

[craddock35]

I like the speed and torque with a 84t spur and 18t pinion it is kinda in the middle of the speed and crawling gearing for the wraith and has worked out great for me.