Originally Posted by fastbynature
They make pinions bigger than 35. Im using robinson racing 39t. 4.3 final drive. But that ratio is with a 17.5 brushless. You need to gear them high to get them going anywhere as they are low revvers. I thought around 5.5 was good, until I slowly went down and down, and have arrived at a nice ratio to run, even on a tight twisty track believe it or not. I'm running an rb5 with a 39 pinion and 65 spur. Do a search on "turbo hub". There is a guy on here who makes them. It allows you to run small spur gears on your b4, cr or rb5. I know some guys running 41t on their b4's.
I've got the hub, I just havn't been able to find pinions bigger than 35 or spurs smaller than 65 in the right pitch. The only way I've been able to find smaller spur/bigger pinion is in 64 pitch. Glad to hear they're out there, now I just need to find one.