138 3000W 72V 100KPH Mid drive motor power train kits with motor controller

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

e.g. Dirt bikeE-motorcycle weight, approx 130kg+2*80kgSpeed: continuous 100km/h

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

Climbing slope: 30°@208kg

Battery: 72V52h

Tire: 0.6138 130/70-17

One set including below kits

1. 1pcs X QSMOTOR 138 3000W PMSM IPM mid drive motor with sprocket

2. 1pcs X Votol EM150SP sine wave motor controller

3. 1pcs X DKD LCD speedometer with standard CAN-BUS

4. 1pcs X Z6 throttle with combination switch


Key Features

1) Light weight and small dimension compare to hub motor 

2) High performance benefit from flux weakening

3) High effeciency during climbing, and better acceleration  

4) Support regenerative braking

Product description

Item: QSMOTOR 138 3000W PMSM IPM mid drive motor


·Motor Type: PMSM IPM Motor With Hall Sensor

·Rated Power: 4500W (9600kW peak in few seconds) 

·Rated Voltage: 72V

·Speed: 3800RPM peak (basic RPM), 6200RPM peak with flux weakening  

·Max Torque: 45-55N.m peak.

·Max Efficiency: approx 94%

·Continuous Battery Current: 67 A (72V)

·Peak Battery Current: 140A (72V)

·Working Temperature: 70-130℃ , peak 150 ℃ 

·Single Hall Set with waterproof connectors

·Waterproof Grade: IP67

·Cooling: air cool

·Dimension: φ162X210mm

·Phase wire: 17mm²

·Insulation grade: F

·Working system: S9

·Color: Black 

·N.W./G.W.: approx 10.8kg/12.5kg  

·Package Dimension: 34cm*34cm*33cm  

·Axle matched with 428 sprocket, teeth optional 11T, 12T, 13T, 14T(as default) etc.

PS. It can be designed as belt driven and sprocket design (as default ).


Dimension Drawing:

QS 3kW 138 mid drive motor(new appearance)


Power train test Report:

For single motor without flux weakening, approx 55N.m peak


For single motor with flux weakening, approx 54N.m peak


2.Votol EM150SP motor controller with standards CANBUS


em150.jpg主图 EM72150SP.jpg

3. DKD LCD speedometer with standard CAN-BUS

It display D N R, P, S gear, and battery current X5/10

 主图 仪表.jpg

4. Z6 throttle with combination switch

With Reverse, Parking button( throttle on/off), 3 slide switch gear, s/boost button, Light and Horn.

It match with VOTOL controller well.

 主图 微信图片_20190709082306.jpg

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.

Application for 3kW mid drive motor