Description: 4 pole 12 slot high-torque motor design for 3.175mm shaft diameter High purity copper windings maximizes efficiency Precision engineered for maximum energy conversion Precision balanced rotor, smooth for best reliability and maximum RPM Multiple protection features: Low voltage cut-off protection, over-heat protection, throttle signal loss protection Built-in 5.8V/3A BEC Suit for 1/10 scale RC car Specification: 1/10 Brushless Motor Specifications: Watts: 900W Max voltage: