What Pinion/pitch to use? with brushless CRT.5 ?

[Arct1k]

You can use brians calculator - see sticky but i would start with something in the 12-14T range - You need a mod 1 pinion.

I would just get a 5mm pinion and use the 5mm to 3.125mm adapter that way you can use the pinion on other projects.

PS i used the 4600 for a while with no issues but some say that is too hot so just what the temps on the 5700.

Rgds