QS 120 2kW 72V60KPH Mid drive motor with 428 sprocket - E Smart Way

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QS 120 2kW 72V60KPH Mid drive motor with 428 sprocket

Regular price $568.00

QS 120 2kW 72V60KPH Mid drive motor with 428 sprocket driven



For 120 2000W mid drive motor kit assembly, it could be used for electric scooter, electric motorcycle.

It could be 72V 60KPH.

PS: We have some in stock, so first come first deserve!




Key Features


1). Simplify to make a electric-motorcycle. Gearbox, transmission shaft, clutch are no need. Which save space.

2). It could be installed in the rear to save more space for battery.

3). Support regenerative braking

4). High efficiency: 85~92%


Packing List


QS 2KW mid drive motor with sprocket 428 14T sprocket



Product description


Genearlly Spec:


  1. Item: QS Motor 2000W 120 70H Mid Drive Motor

  2. Motor Type:PMSM Permanent Magnet Inner Rotor Motor With Hall Sensor

  3. Brand: QS Motor, QSMOTOR

  4. Motor Design: Single axle

  5. Matched Wheel: 12inch Wheel (as default)

  6. Magnet Height: 70mm,40pcs,5pole pairs

  7. Diameter of stator: 120mm

  8. Rated Power: 2000W

  9. Rated Voltage: 72V as default

  10. Speed: 60KPH

  11. No-load rpm: 2800rpm without flux weakening, 4400RPM with flux weakening.

  12. Max Torque: approx 45.4N.m without Reduction ratio, approx 216.7N.m with 1:4.77 Reduction ratio

  13. Reduction ratio: 1:4.77 (as default)

  14. Max Efficiency: 88%

  15. Continuous Battery Current: pending (72V)

  16. Peak Battery Current: 60A (72V)

  17. Suggest Peak Phase Current: 250A

  18. Thermic Probe: KTY83/122 as default

  19. Working Temperature: Pending

  20. Single Hall Plate with waterproof connectors

  21. 8mm² Cross Section of Phase Wire (not include insulation layer)

  22. Hall Sensor Phasing angle: 120 degree

  23. Waterproof Grade: IP67

  24. Color: Black

  25. N.W./G.W.: 10.8kgs/11.5kgs

  26. Package Dimension: 34cm*34cm*33cm

  27. Axle matched with 428 sprocket, teeth optional(12T, 13T, 14T...etc)


P.S.: For 2kW 138 old mid drive motor, it can be designed as belt driven.(As default)

If you want to buy such mid drive motor, please kindly click below picture.



Dimension Drawing:


  • QS 2kW 120 mid drive motor(old appearance, belt driven)


Test Report:


Please noted:


Optional appearance, drawing, performance curve/test report are available.

If you need more technical information, please feel free to contact us.

We will give you reply in 12hours.



Conversion kits for QS 2kW mid dirve hub motor


We're able to supply Controller, display, dc-dc converter, disc brake system, twist throttle, matched tire...etc.



Application for 2kW mid drive motor





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Inventory Last Updated: Dec 28, 2024