Features: 4 Pole 12 slot hi-torque motor design CNC machined 6061 T6 billet aluminum heatsink can High purity copper windings maximizes efficiency High RPM ABEC5 oversized bearings Universal fit,fits all 1/8 brushless cars-multi-mounting system for M3 screws Precision balanced rotor,smoothness for best reliability and maximum RPM Stator is covered with super thin (0.35mm) laminations Rotor is removable and replaceable Precision engineered for maximum energy conversion