Features: Suitable for 1/16, 1/18 model car, it has high torque and efficiency.Rotor is removable and replaceable.ABEC5 bearing has high RPM.High purity copper windings maximizes efficiency, which extends its service life greatly.CNC machined aluminum heatsink shell is of good heat dissipation.Precision design achieves maximum energy conversion.Precise balanced rotor is stable, good smoothness for best reliability and maximum RPM.Specification: Material: Metal + MagnetColor: BlueDiameter: 24mm / 0.9inchLength: 45mm / 1.8inchShaft Length: 12mm / 0.5inchShaft Diameter: 2.3mm / 0.09inchConnetor: 3.5mm Bullet PlugKV(RPM/Volt): 5400KVMax RPM: 50000Max Voltage: <8.4VMax Current: 59AResistance: 0.0042Weight: 107gType: RC ModelPackage Includes:1 x Motor