Spur Gears.

Spur Gears at RC Shopper: 54 products listed, shipped from the UK. Prices run from £3.99 to £13.99. Stock comes from Arrowmax, TOPLINE, MST and 4 other brands. Fitment varies, so read the listing for the exact chassis and revision. Stock levels on each listing are real, sold out included. Gearing is a trade between punch and temperature. If the motor is too hot to hold after a run, drop a tooth on the pinion.