QS 138 3000W 72V 100KPH new appearance mid drive motor with motor controller and Z6 throttle

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

One set including below kits

Combo 1

1. 1pcs X QSMOTOR 138 3000W PMSM IPM old appearance mid drive motor with belt axle

2. 1pcs X Votol EM150SP sine wave motor controller with standard CAN-BUS

3. 1pcs X Z6 throttle with combination switch

You can click below picture for Aliexpress purchsing link.

Combo 2

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

2. 1pcs X Votol EM150SP sine wave motor controller with standard CAN-BUS

3. 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

Genearlly specification

·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 ℃ 

.Temperature sensor KTY-83/122 is optional, if you need, please kindly let sales know

·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 ).

If you only interested in buying mid drive motor, please click below picture for the purchasing link.

Dimension Drawing:

QS 3kW 138 mid drive motor(old appearance, belt design)

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. 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 old appearance sprocket mid drive motor