Here’s what I’m running. It’s the best combo I’ve found. Faster top speed then 3.0 and 2.6 with any gear set. Quicker acceleration then 2.2and 2.6 with any gear set.
Bullet frame, Bit PC board, Bullet steering stuff, modified Bullet front wheels to fit Bit hard tires, Bullet motor with Bullet big white gear, Bit rear axle with blue Bit gears (that’s right, blue gears and still faser top speed then 3.0 bit with green gears), soft Bit tires on rear.
Also to help performance: Cat-5 antenna mod, NiMH battery and AC car charger.
Just my opinion
-Peter