QSMOTOR 17*3.5inch 4kW 273 40H V3 Brushless BLDC Electric Scooter Motorcycle in wheel Hub Motor with kits

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Product Overview


QS 17inch 4kW 273 40H V3 Brushless BLDC Electric Scooter Motorcycle in-wheel Hub Motor with kits

For 17inch E-scooter Wheel hub motor, it could be used for electric scooter, electric motorcycle.

273 motor means the diameter of iron ring of rotor is 273mm, for all 273 motor, e.g. 13inch,14inch,16inch & 17inch 273  hub motor etc., the configuration & performance is the same as 10inch 205 Hub Motor.

There are 17*3.5inch(as default), 17*4.5inch(Only available for 12kW & 14kW power), 17*6.0inch(Latest)


Key Features


1). Simplify to make a electric-scooter. 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%



PS.1). Above quotation base on 273 17inch electric scooter wheel hub motor, 48V~120V.

2). Above configuration is suggested for mass production,

for EV enthusiast, V2 & V3 motor could be over-voltaged to gain more speed/performance (customizable).

Product description


Genearlly Spec:

  • Motor Type: BLDC Outer Rotor In-Wheel Hub Motor With Hall Sensor

  • Brand: QS Motor, QSMOTOR

  • Motor Design: Double axle with 17inch moped rim (integrated)

  • Rim Size:17x3.5inch(Narrow Tire as default), matched tire: 130/70-17 etc

  • Magnet Height: 40mm, 16 pole pairs

  • Stator: Aluminum Core

  • Rated Power: 4000W

  • Speed: 30KPH-100KPH, it's customized, genearlly we will design as 72V85KPH.

  • Work voltage range: 48V-120V, will be 72V as default.

  • Max Torque approx 266.0N.m

  • KV: 8/11.04/12.1/13.3/15.2/17.3 (optional)

  • Thermic Probe: KTY83-122 (as default, optional)

  • Max Efficiency approx 88%

  • Brake type: Disc brake (as default), PCD3*80mm-M8, CB 58mm

  • Drop-outs: 200mm

  • Dual Halls with waterproof connectos(One for spare, in case of damage)

  • 10mm² Phase Wire

  • Waterproof Grade: IP54

  • Color: Black (As default)


Dimension Drawing:

  • 17*3.5inch in-wheel hub motor(Integrated)

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 17inch in-wheel hub motor


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


Application for 17inch in-wheel hub motor





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