72v 5000w 3.5T EBike Hub Motor 50H Stealth Bomber Qs 205 Motor MTX39 Rim. The 3.5T Motor Version is the 3.5 Turns Windings Stator inside the motor. The 5T Motor Version is the 5 Turns Windings Stator inside the motor. Its rpm is around 650rpm/72v, so its max speed is around 60-70 km/h. Motor Type: BLDC Hub Motor with Permanent Magnet. Motor design: Double axle out. Spoke hole: 3.4mm x 36pcs. Pole Pairs: 23 pairs. Rated Voltage: 72V(48-96V Can be optional). Speed: 70km/h (30-90km/h can be customized with 24inch wheel). Max No-load RPM: 1000RPM. Max current:80A (Peak 100A in short time). Brake type: Disc brake. Rear Fork width for installation: 150mm. Winding Core material: Aluminium. Cross Section of Phase wire: 10 mm2. Hall sensor phasing angle: 120 degree. Working Temperature: 70 degree, Peak 120 degree. 72V 5KW QS Motor MTX39 Rim. We’re dedicated to your satisfaction. Your experience is important to us.