For this 273 12kw E-bike Spoke Hub Motor, the dropout is 152mm, it could be used for electric bike, high power electric bicycle.

273 motor means the diameter of iron ring of rotor is 273mm

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%

Product description

Genearlly Spec:

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

• Brand: QS Motor, QSMOTOR

• Motor Design: Double axle without moped rim (integrated), 36 spoke holes, OD 4.2mm(only silver spokes available)

• Matching Rim Size: 17inch, 18inch, 19inch moped wheel rim

• Magnet Height: 50mm, 16 pole pairs

• Stator: Aluminum Core

• Rated Power: 4000W, peak 12000W

• Speed: 24KPH-120KPH, it's customized, genearlly we will design as 72V100KPH.

• Work Voltage range: 48V-96V, will be 72V as default.

• Max Torque approx 266.0N.m

• KV: 12.5/15.6/17.9(optional)

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

• Max Efficiency approx 84%

• Working Temperature: 70-120℃ , peak 150 ℃

• Brake type: Disc brake (as default), PCD6*44mm for bicycle

• Drop-outs/Rear fork Width for installation: 150mm

• Dual Halls with waterproof connectors(One for using, one for spare)

• 14mm english thread length for single/3 speed freewheel

• 10mm axle flats

• 16mm² Cross Section of Phase Wire(not including insulation layer)

• Waterproof Grade: IP54

• Color: Black (As default)

Test Report

SVMC72200

2). DC Current Limit: 200A

3). Max. Phase Current: 450A

4). Protect Phase Current: 550A

5). Battery Voltage: 24V-72V rated, Max. 95V

6). Thermic Probe: KTY83-122

7). Including one controller + USB convertor cable + matched plug

8). Controller size: 283mm*147mm*62mm

9). Net weight: 2.8kg

10). It includes bluetooth adapter as default

11). Default function: Hall, Throttle, Electric Lock, High Brake Level, Temp sensor, 0-5v e-brake, three speed Button, Hall speedometer, Reverse, Curise.

273 E-Spoke Hub Motor Bicycle Application

It's QS electric In-Wheel Bicycle Spoke Hub Motor for Conversion Kits, which power range from 3000w to 4000w rated, drop-outs 152mm with bicycle disc brake.

Especially suit for electric bicycle, max. speed for 60km/h to 120km/h.