Originally Posted by brrrrm

Hey Redko,
I got the 30T at my LHS. It was not a Tamiya one. See post 735 for pinion options.

Today I tested my 40x65 (48 pitch) setup using the HPI spur gear adapter (see post 779) and silver can. This is a FDR of 4.23. The car simply flies on the straights and there is still enough torque to spin the rear wheels in corners, so acelleration should not be a problem in a race, but only the real race will tell. What pleased me most is that the motor temp was not too bad. Too hot to touch, but no charring. After 10 minutes in a cool breeze the motor was ready for another run. Some pics below.