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QS205 150mm Dropout 48-72V 3000W 5000W 205H Electric Fat Bike Rear Motor Wheel 20X4.0 24X4.0 26X4.0 Rim Max Speed 80-100km/h Difference between 3.5T and 5T : 3.5T is high speed version, 5T is high torque version, 5T max speed is much lower than 3.5T. If you often ride on mountain road or your ebike will load heavy weight, then 5T is better for you. Packaging list 1. QS205 50H 72V 3000W or 5000W Electric bike rear hub motor wheel 150mm dropout 2. Single speed freewheel 20x4 5000w 3.5T has US sotck QS motor specification Motor Details: 1.Motor Type: BLDC Hub Motor with Permanent Magnet 2.Motor design: Double axle out 3.Spoke hole: 3.4mm x 36pcs 4.Matching Rim:16inch-29inch 5.Magnet Height: 50MM 6.No. of Pole Pairs: 16paris 7.Rated Power: 3000W 8.Peak Power: 6000W 9.Rated Voltage: 72V 10.Max No-load RPM: 950RPM 11.Max Torque: 150N.M 12.Max Efficiency: 88% 13.Max current:80A (Peak 100A in short time) 14.Brake type: Disc brake 15.Rear Fork width for installation: 150mm 16.Winding Core material: Aluminium 17.Cross Section of Phase wire: 10 mm2 18.Hall sensor phasing angle: 120 degree 19.Temperature Sensor: Optional 20.Max. Working Temperature: 70 degree, Peak 120 degree 21.Waterproof Grade: IP54 5000W 1. Motor Type: BLDC In-Wheel Hub Motor 2. Motor Design: Double Axle 3. Matched Tire: 17inch-29inch 4. PCD: 6*44mm 5. Stator: Aluminum Core 6. Rated Power: 5000W 7. Peak Power: 10000W in few seconds 8. Rated Voltage: 72V 9. Speed: 850rpm 10. Drop-outs: 150mm 11. Max Torque: approx 181N.m 12. Max Efficiency: approx 91% 13. Suggest Peak Phase Current: N/A 14. Thermic Probe: KTY83/122(as default) 15. Working Temperature: 70-120℃, peak 150℃ 16. Brake Type: Disc Brake 17. Hall Sensor: Dual hall set with waterproof connector 18. Phase Wire:2*5mm²Cross 19. Hall Sensor Phasing Angle: 120 degree 20. Waterproof Grade: IP6522.