QS Motor 205 50H V3 Electric high power E bike spoke hub motor kit

For 205 3000W 205 V3 electric spoke hub Motor kit assembly, it could be used for high power electric bike, which could be 72V 70KPH.

e.g. Electric high power bike

E-bike weight, approx 47kg+80kg

Tire diameter: 2.50-19

Speed: 72V 70km/h

Climbing slope: 25°@127kg

Battery: 72V40h lithium battery

One set including below kits

1. 1pc X QSMOTOR 3000W 205 50H V3 electric spoke hub Motor主图SIA.jpg

2. 1pc X Motor Spacer3. 1pc X Freewheel

4. 1set X 19X1.6inch moped front wheel and 19X1.6inch rear wheel

4. 1pc X KLS7230S controller (customized for TFT speedometer) with bluetooth adapter

5. 1pc X TFT750C speedometer

6. 1pc X Half Twist Throttle

7. 1pc X Thumb Throttle

8. 1pc X disc brake assembly

9. 1pc X DC DC converter 72v to 12V 10A


Key Features

1. QS Motor with high quality and service.
2. Sine Wave controller, Bluetooth wireless connection are optional, Highest Reliability!
3. Parameter Programmable
4. Higher Torque & Higher Efficiency
5. No noisy
6. Temperature sensor inside and Lower overheating
7. Regenerative braking

Product description

1.Item: QSMOTOR 3000W 205 50H V3 electric spoke hub Motor


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

·Brand: QS Motor,QSMOTOR

·Motor Design: double axle without rim 

·Matched Wheel: 24inch, 26inch E-Bike Wheel, 17inch, 18inch, 19inch moped wheel.

·Stator: Aluminmum Core

·Rated Power: 3000W (6000kW peak in few seconds) 

·Rated Voltage: 72V

·Speed: 650RPM no load, approx 70km/h  

·kV: 9.0kV

·Max Torque: approx 181N.m

·Max Efficiency: approx 91%

·Continuous Battery Current: 44A (72V)

·Peak Battery Current: 100-150A (72V)

·Suggest Peak Phase Current:240A

·Thermic Probe: KTY83/122 (as default, optional)

·Working Temperature: 70-120℃ , peak 150 ℃ 

·Brake type: Bike Disc brake, PCD6*44mm(as default)

·Drop-outs/Rear Fork Width for installation: 150mm

·14mm english thread length for single/3 speed freewheel

·10mm axle flats

·Dual Hall Set with waterproof connectors

·10mm² Cross Section of Phase Wire (not include insulation layer)

·Hall Sensor Phasing angle: 120 degree

·Waterproof Grade: IP54

·Color: Black 

·N.W./G.W.: approx 12.5/14.0kg (TBD)  

·Package Dimension: 34cm*34cm*33cm/piece  




Power train test Report:


2. Motor Spacer

To protect motor phase wire

spacer 1000×1000.jpg  


General SPEC

1. Single speed 1/2*3/32*16T, only 16T is available now

2. Black

3. English System Thread

4. Suit for QS Spoke Motor (English thread)


4. 19X1.6inch moped front wheel and 19X1.6inch rear wheel

1.60X19inch 2 Cross Pattern Moped Front Wheel Set
32X10G Spoke, silver color (Iron with zinc coat)
32 holes, 110mm dropouts, black

1.60X19inch 1 Cross Pattern Moped Rear Wheel Set
36X10G Spoke, silver color (Iron with zinc coat)
QS 3000W 205 50H Hub Motor, 36 holes, 150mm dropouts, black (not include motor) 


5. KLS7230S controller (customized for TFT speedometer) with bluetooth adapter

Generally specification

•Frequency of Operation: 20kHz.
•Standby Battery Current: < 0.5mA.
•5V or 12V Sensor Supply Current: 40mA.
•Controller supply voltage range: PWR, 18V to 90V for controllers rated equal or lower than 72V. 
•Supply Current, PWR, 30mA Typical.
•Configurable battery voltage range, B+. Max operating range: 18V to 1.25*Nominal Voltage.
•Standard Throttle Input: 0-5 Volts(3-wire resistive pot), 1-4 Volts(hall active throttle).
•Throttle Input: 0-5 Volts. Can use 3-wire pot to produce 0-5V signal.
•Main Contactor Coil Driver<2A.
•Full Power Operating Temperature Range: 0℃ to 70℃(MOSFET temperature).
•Operating Temper ature Range: -40℃to 100℃ (MOSFET temperature).
•Motor Current Limit, 20 seconds boost: 300A ,depending on the model.
•Motor Current Limit, continuous: 120A ,depending on the model. 
•Max Battery Current :Configurable.



5. TFT750C speedometer  


·Suitable for low temperature,Max -20℃.

·High-contrast 3.2inch IPS colorful matrix screen.

·Ergonomic external button design, easy to operate.

·Speed display: AVG SPEED, MAX SPEED, SPEED (Real-time).

·Kilometer / Mile: Can be set according to customers’ habits.

·Smart battery indicator: Provide a reliable battery indicator.


·Mileage indicator: Odometer/ Trip distance/ Clock/ Riding time/ Range.

·Power indicator: real time power indicator, digital or analog.

·Software upgraded: Software can be upgraded through UART.

6. Half Twist Throttle with 3 speed toggle switch 


7. Thumb Throttle for 0-5V variable regen brake

It could be mounted in left hand


8. Disc brake assembly

electric bicycle forged aluminum hydraulic disc brake system assembly碟刹总成1000×1000SIA.jpg


1. Model: 152PYD+BS152

2. Including 2pcs 203mm plate, PCD6*44mm, 2mm thickness

3. The length of oil of both front and rear can be customized according to your e-bike(900mm for front, 1600mm for rear as default)

4. Callipers: double-piston 2*21mm

5. Installing Distance of front tire: 74mm(as default) or 51mm

6. Installing distance of rear tire: 51mm

7. Wiring: two core wiring

8. Materials: Caliper/Lever Forged aluminum, Bracket: Cast aluminum

9. Current: 1A (max)

10. DC DC converter

72V to 12V, 10A


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 205 3000W 205 V3 electric spoke hub Motor 

 205 spoke motor 750×750.jpg