Originally Posted by mini-dub
118 on the 2mm chassis is the biggest 16p spur you could run. The smallest pinion you could run with a 118 is I think a 22t. That puts you at a 9.65 ratio. If you dremel the motor mount so the slots are longer you can fit smaller pinions though, that's what most people have to do running low turn brushless on any car.
The 120 spur fits on the car too
Running brushless will require some drilling to get the correct ratios to fit. I have a 64P 19 pinion on mine right now.