one more question with a spur that small does the pinion match up ok? mine on 18/66 is about out of adjustment. (motor hits the tranny) (E-maxx though)
phil

Good catch, diddnt even think of that.

If the total sum of the diameters of your gears is 70.4mm (18t = 16mm + 66t 54.4mm according to the “gear calc”), then the sum of the diameter of each gear should be equal to or greater than 70.4mm in order to for the gears to mesh properly. Is that right? :013:

If so, 22/54 wouldn’t reach, only adds up to 64mm. The smallest spur I could use with a 22t pinion would be a 62t. Maybe I’ll hold of on buying a motor and pinions until I get a better handle on the whole gearing thing.:002: