Originally Posted by
B00t13g
What pinions are everyone using?
Are they hitting your battery or top deck or motor screws?
For the first time since I bought it I'm having this problem but only since I switched to a revtech from a thunder power..
The revtechs rotor is longer than the tp and the flat spot is shorter so the pinions hit the battery or if put on backwards the motor screws or top deck, the only pinions I didn't have the problem with was the CRC ones put on backwards