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 5mm 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 (11T-15T): This comprehensive set includes 5 hardened steel pinions covering a wide range: 11T 12T 13T 14T 15T. 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.