BROAD COMPATIBILITY FOR 1/10 SCALE MODELS: Designed specifically for 1/10 scale trucks, crawler, buggy, and monster RC cars, this gear set is compatible with a wide range of popular 3.175mm shaft motors, including both brushless and brushed types, such as 540/550 motors. It is an ideal upgrade or replacement part for Tamiya TT01, TT02, Traxxas, Axial, Arrma, HPI, Kyosho, and Losi.
Complete 5-Piece Set for Gear Ratio Tuning (18T-22T): This comprehensive set includes 5 hardened steel pinions covering a wide range: 18T, 19T, 20T, 21T, 22T. This allows you to easily experiment with different gear ratios to optimize your RC vehicle for top speed or maximum torque based on your track or terrain.