For 2000W mid drive motor kit assembly, it could be used for electric scooter, electric motorcycle.
e.g. M3 electric motorbike
E-motorbike weight, approx 115kg+2*80kg
Speed: continuous 70km/h
Gear ratio: 1:4.77
Battery: 72V40h NCM lithium battery
If you have interested in this product, you can contact with our sales directly.
Sales Contact: firstname.lastname@example.org
Skype: Damon Wong(QSMOTOR)
We Chat:+86 18758618893
Aliexpress online purchasing link for this motor kits:
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%
1. Genearlly Spec:
Motor Type: BLDC Permanent Magnet Inner Rotor Motor With Hall Sensor
Brand: QS Motor, QSMOTOR
Motor Design: Single axle
Matched Wheel: 12inch Wheel (as default)
Magnet Height: 70mm, 40pcs, 5 pole pairs
Diameter of stator: 120mm
Rated Power: 2000W
Rated Voltage: 72V as default
No-load rpm: 2800rpm without flux weakening, 4400RPM with flux weakening.
Max Torque: approx 45.4N.m without Reduction ratio, approx 216.7N.m with 1:4.77 Reduction ratio
Reduction ratio: 1:4.77 (as default)
Max Efficiency: 88%
Continuous Battery Current: 35A (72V)
Peak Battery Current: 60A (72V)
Suggest Peak Phase Current: 250A
Thermic Probe: None as default (KTY83/122 is available, if you need, please let sales man know).
Working Temperature: Pending
Single Hall Plate with waterproof connectors
8mm² Cross Section of Phase Wire (not include insulation layer)
Hall Sensor Phasing angle: 120 degree
Waterproof Grade: IP54
Package Dimension: 34cm*34cm*33cm
2. Dimension Drawing
3. Test report
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 120 2KW mid drive motor
We're able to supply Controller, display, dc-dc converter, disc brake system, twist throttle...etc.
For online purchasing link, please click the picture.
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