utf8 QSMOTOR 138 3000W V3 Mid Drive Motor With Gear Box

QSMOTOR 138 3000W V3 Mid Drive Motor With Gearbox

Price:US $351.00/piece
Production Period:10~12 Working days

QSMOTOR 138 3000W V3 Mid Drive Motor With Gear Box

For 138 motor powertrain kits, it could be used for electric light motorcycle, which could be 72V 100KPH.

e.g. Dirt bike

E-motorcycle weight, approx 128kg+2*80kg

Speed: continuous 100km/h

Gear ratio: 1:3 (single steps transmission )

Climbing slope: 25°@5kph @208kg

Battery: 72V40ah

Tire: 130/70-17


It fits with 428 sprocket. We are able to supply 428 15T, price is 7USD/PCS.


If you have interested in this product, you can contact with our sales directly.


Sales Contact: Damon@siaecosys.com

Skype: Damon Wong(QSMOTOR)

We Chat:+86 18758618893


Aliexpress online purchasing link for this motor: 

Key Features


1). Simplify to make a electric-scooter. 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


1. Genearlly Spec:


2. Dimension Drawing


3. Test report


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.

Conversion kits for QS 138 3KW V3 mid drive motor

We're able to supply Controller, display, dc-dc converter, disc brake system, twist throttle...etc.

For online purchasing link, please click the picture.


Application for QS-138-3KW-V3 Gear box mid drive motor


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