utf8 QSMOTOR 138 3000W 70H 6000W Max continuous 72V 100KPH Mid drive Motor conversion kit with EM150-2SP

SiAECOSYS QS MOTOR 138 3KW V3 Mid Drive Motor Conversion Kits With EM150-2SP Controller for go-kart

Price:US $699.00/piece
Production Period:10-12 business days

Siaecosys QS Motor 138 3KW V3 mid drive motor conversion kits with EM150-2SP Controller for go-kart


For 138 70H motor powertrain kits, it could be used for electric 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: 72V52ah

Tire: 0.6138 130/70-17

P.S. If you have any confused about the shipping cost, please feel free to contact with us.

Also could place order but don't pay first, then we could adjust the price. 


Sales Contact: Damon@siaecosys.com


Skype: Damon Wong(QSMOTOR)


We Chat:+86 18758618893


Aliexpress online purchasing link for this motor(You can click pic for hyperlink): 



One set including below kits


1.1pc X QS 138 3kW Mid drive motor with 15T 428 sprocket adapter

2.1pcs X EM150-2SP sine wave motor controller with standard CAN-BUS

3.1pcs X DKD LCD speedometer with CAN (disable CAN as default)

4.1pcs X Z6 throttle with combination switch

5.1pcs X 428 15T Sprocket


Product Description

1. QSMOTOR 138 3000W V3 Mid drive motor


Dimension drawing


Test Report


2.  EM150-2SP sine wave motor controller with standard CAN-BUS

There is latest new hardware controller, it support 1st 2nd 3rd speed gear, sport mode, reverse mode (no Parking mode), soft start as default.


Drawing for EM150-2SP Controller


 Controller Wiring Diagram



EM Controller Software Interface


3. DKD LCD speedometer, can-bus(optional, LIN as default)


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

P.s.: If the working battery doesn't have can-bus communication, then the can-bus speedometer will shows lack of electricity always.

So, we suggest to do the speedometer as Line communication version if client can't get can-bus battery.



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 controller well.


5. DNR Device


Application for QS-138-3KW-V3 Spline shaft mid drive motor




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