QSMOTOR 3000W 5000W 138 70H electric motorbike new mid drive motor for electric motorcycle

QS 138 3kW 72V100KPH Mid drive motor with new appearance sprocket design: Price:US $273.00/piece; N.W.:11.5kgs; G.W.:12.0kgs; Dimension:34*34*34cm; Production Period:12~13 working days

Photo

Description

QS 138 3kW 72V100KPH Mid drive motor with new appearance sprocket design

For 138 3000W sprocket design mid drive motor kit assembly, it could be used for electric light motorcycle, which could be 72V 100KPH.

e.g. Dirt bike

E-motorcycle weight, approx 130kg+2*80kg

Speed: continuous 100km/h

Gear ratio: 1:2.3*3 (double steps transmission )

Climbing slope: 30°@208kg

Battery: 72V52h

Tire: 0.6138 130/70-17

You can click below picture for Aliexpress purchasing link.

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%

Product description

Genearlly Spec:

Item: QS Motor 3000W 138 70H Mid Drive Motor
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: 138mm
Rated Power: 3000W
Rated Voltage: 72V as default
Speed: 100KPH
No-load rpm: 3800rpm without flux weakening, 6000RPM with flux weakening.
Max Torque: approx 56N.m without Reduction ratio, approx 247N.m with 1:4.77 Reduction ratio
Reduction ratio: 1:4.77 (as default)
Max Efficiency: 88%
Continuous Battery Current: pending (72V)
Peak Battery Current: 120A (72V)
Suggest Peak Phase Current: 450A
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
16mm² Cross Section of Phase Wire (not include insulation layer)
Hall Sensor Phasing angle: 120 degree
Waterproof Grade: IP54
Color: Black
N.W./G.W.: 10.8kgs/11.5kgs
Package Dimension: 34cm*34cm*33cm
Axle matched with 428 sprocket, 14T as default