utf8 SiAECOSYS QSMOTOR 12*3.5inch 1500W 48V 55kph BLDC E-Scooter Hub Motor Kits Power Train

SiAECOSYS QSMOTOR 12*3.5inch 1500W 48V 55KPH BLDC E-Scooter Hub Motor Kits Power Train with EM50SP controller

Price:US $286.00/piece
Production Period:13~14 working days

SiAECOSYS QSMOTOR 12*3.5inch 1500W 48V 55kph BLDC E-Scooter Hub Motor Kits Power Train with EM50SP controller


For 1000W motor kits, it could be used for Electric Scooter, which could be 72V 45KPH.

 e.g. Electric Scooter

Weight, approx 90kg+85kg

Speed: 48V45KPH

Climbing Slope: 15 degree@175kg

Tire: 120/90-12


You can click below picture for Aliexpress purchasing link:


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


One set including below kits


1. 1pcs X QSMOTOR 12x3.5inch 1500W V1.12 electric wheel hub motor 

2. 1pcs X EM50SP 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


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. QSMOTOR 12X3.5inch 1500W 260 V1.12 Electric Scooter Hub Motor


Motor Type: BLDC Outer Rotor In-Wheel Hub Motor With Hall Sensor

 Brand: QS Motor, QSMOTOR

 Motor Design: Double axle with 12x3.5inch moped rim (Integrated), Optional 12x2.5inch moped rim.

 Rim Size:12x3.5inch, matched tire: 130/70-12 etc

 Magnet Height: 30mm, 24 pole pairs

 Stator: Steel Core

 Rated Power: 1500W

 Rated speed : 21KPH-75KPH, it's customized, genearlly we will design as 72V65KPH.

 Working voltage range: 48V-96V 

 Max Torque approx 115.0N.m

 KV: 6.5/8/10 (optional)

 Thermic Probe: KTY83-122 (as default, optional)

 Max Efficiency approx 88%

 Brake type: Disc brake (as default), PCD3*80mm-M8, CB 58mm;

 Drop-outs: 200mm

 Dual Halls with waterproof connectos(One for spare, in case of damage)

 4mm² Phase Wire

 Hall sensor phasing angle: 120 degrees

 Waterproof Grade: IP54

 Color: Black (As default)


2. Dimension drawing




3. Test report



2.  EM50SP 72V sinusoidal wave BLDC motor controller, with CAN BUS



Dimension drawing



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 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 12x3.5inch 1.5kw In-wheel E-scooter hub motor





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