It may be a dumb question but will running the high speed pinion gear with one battery hurt anything?
I have it installed and with my gps it still does the same speed with one battery 32.8mph.I dont want to change it out all the time is the only reason im asking.
Rally KB,Revo with BB engine,Stampede
It'll increase the temperature of both the motor and the ESC as the bigger pinion will cause an increase in current drawn by the motor. If you're not getting a speed increase, just go back to the stock pinion.