Originally Posted by bboy

Alright ... I figured out why I keep loosing teeth on my Spur. I run LRP 3.5 brushless and according to manual, I try to set a gear ratio of 10.5+ (my local track is fairly small) so with a 105T Spur, I used a 21T pinion, and I finally realized that because the pinion is so small, I could not get a close enough mesh because I have already pushed the mesh as far as I could and the motor mount just wouldn't let me get closer!

Oh well, I am now off to the stores to pick up a 120T to see if that will help. I also talked to some guys at the track and they suggested that one way to set mesh is to hold the pinion steady, rotate the spur, and the spur should move just very little. Too much will mean it's too loose.

So much for my weekend run ... sob.