Tamiya Hop-Up Options 56526 TR Torque Tuned Brushed 540 Motor 33TThis low RPM, high torque motor was designed for use with R C truck models, providing excellent throttle control throughout lower speed ranges, and still giving plenty of pull when hauling a trailer in top gear. Ball bearings and limited power consumption mean that you'll experience long drive times.Input Voltage: 6. 6 7. 2V RPM (without load): 12,500rpm Maximum torque: 3. 92mN m