QS motor 138 3000W 72V 100KPH Mid drive motor power train kits with motor controller for electric motorcycle motorbike

$573.00 / Set | 1 Set (Min. Order)
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Lead Time:
15 day(s) after payment received
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Place of Origin:
Zhejiang, China
Brand Name:
Model Number:
dc motor
Electric Bicycle, electric motorbike motorcycle
Gear Motor
Permanent Magnet
Protect Feature:
6200RPM peak with flux weakening
Continuous Current(A):
67 A (72V)
DC Motor

Packaging & Delivery

Selling Units:
Single item
Single package size: 
34X34X33 cm
Single gross weight:
16.0 kg
Package Type:
QS Standard Export Packing 1. Polyfoam + Carton Box 2. Or according to customer's requirements
Lead Time :
Quantity(Set) 1 - 1 >1
Est. Time(days) 15 To be negotiated

QS motor 138 3000W 72V 100KPH Mid drive motor power train kits with motor controller for electric motorcycle motorbike


For 138 3000W 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





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


3. DKD LCD speedometer with standard CAN-BUS

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


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.


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



A note to client:

1. Please contact seller confirm the parameter, otherwise we will produce as default.

2. Please extended 15 days more at least for order prepare when motor no in stock. (Most of motor is customized based on application, without in stock).

3. When place order please leave email address, for seller provide manuel.

4. Please read manuel careful before woring motor and controller, and if meet problem please contact seller in time, and don't disassembly cargo without seller permit, otherwise there will be no warranty.




Company Information



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