[Mallanaga]

i don't think he's worried about the speed. from the sounds of it, he wants to make sure he's not over straining any of the components by being over or under geared.

there's really only a small window of possibilities for each motor / ESC / battery combo you have.

as more me... i'm honestly wondering the same question. i have a 16 tooth pinion, with the 36, 38, and 40 tooth spurs. once i get my revo moving again, i can't wait to test them out to see which is best.

you might try the same thing... 14-16 tooth pinion, is a good start methinks.