QS273 3000W 13inch Electric motorcycle Motor Conversion Kits

13inch 3000W 48V-72V Electric Motorcycle Conversion Kits


The parts list as follows,


1pc x QS 13inch 3000W (40H) V2 Hub Motor

​1set x 220mm Disc brake system with caliper

1pc x Twist Hall Throttle

1pc x Kelly Controller KEB72451

1pc x Kelly Controller J2 Cable

1pc x Kelly Controller USB cable



1.  13inch 273 E-Scooter In-Wheel Hub Motor(40H) 3000W V2 Type

Motor Specification:

1. Motor Type: BLDC Hub Motor with Permanent Magnets
2. Motor design: Double axle out with 13inch Aluminium rim
3. Rim size:3.5×13
4. Matching Tire: 130/60-13
5. Magnet Height: 40MM
6. No. of Pole Pairs: 28 pairs
7. Rated Power: 3000W
8. Peak Power:5200W
9. Rated Voltage: 72V( 48-96V Can be optional)
10. Speed: 70km/h (30-90km/h can be customized)
11. Max No-load RPM:1000RPM
12. Max Torque: 195N.M
13. Max Efficiency: 88%
14. Continious current:50A
15. Max current:100A
16. Brake type: Disc brake
17. Rear Fock width for installation: 200mm
18. Winding Core material: Aluminium
19. Cross Section of Phase wire: 16 mm2
20. Hall sensor phasing angle: 120 degree
21. Temperature Sensor: Optional
22. Max. Working Temperature: 70 degree, Peak 120 degree
23. Waterproof Grade: IP54
24. N.W./ G..W. : 21kgs / 22kgs
25. Package Size: 44*43*34CM


Motor Pictures:

Please choose what side cover design you need,or it will be randam delivery!





Motor drawing:

13inch 3.5x13_




Motor cable:

motor wires





2. Controller— Kelly Programmable Controller KEB72451



controller keb72101 -


Kelly KEB programmable ebike brushless DC motor controller provides efficient, smooth and quiet controls for electric bicycle, electric motorcycle, scooter, etc. Ebike brushless motor controller outputs high taking off current, and strictly limit battery current. Motor speed controller can work with relative small battery, but provide good acceleration and hill climbing. BLDC motor speed controller uses high power MOSFET, PWM to achieve efficiency 99%. In most cases, Powerful microprocessor brings in comprehensive and precise control to BLDC motor controllers. This programmable brushless motor controller also allows users to set parameters, conduct tests, and obtain diagnostic information quickly and easily.
• Specially designed for electric motorcycle or electric vehicle
• Intelligence with powerful microprocessor.
• Synchronous rectification, ultra low drop, fast PWM to achieve very high efficiency.
• Electronic reversing.
• Voltage monitoring on 3 motor phases, bus, and power supply.
• Voltage monitoring on voltage source 12V and 5V.
• Current sense on all 3 motor phases.
• Current control loop.
• Hardware over current protection.
• Hardware over voltage protection.
• Support torque mode, speed mode, and balanced mode operation.
• Configurable limit for motor current and battery current.
• Battery current limiting available, doesn’t affect taking off performance.
• More startup current ,can get more startup speed.
• Low EMC.
• LED fault code.
• Battery protection: current cutback, warning and shutdown at configurable high and low battery voltage.
• Rugged aluminum housing for maximum heat dissipation and harsh environment.
• Rugged high current terminals, and rugged aviation connectors for small signal.
• Thermal protection: current cut back, warning and shutdown on high temperature.
• Configurable 60 degree or 120 degree hall position sensors.
• Support motors with any number of poles.
• Up to 40,000 electric RPM standard. Optional high speed 70,000 ERPM, and ultra high speed 100,000 ERPM. (Electric RPM = mechanical RPM * motor pole pairs).
• Brake switch is used to start regen.
• 0-5V brake signal is used to command regen current.
• Support three modes of regenerative braking: brake switch regen, release throttle regen,0-5V analog signal variable regen.
• Configurable high pedal protection: the controller will not work if high throttle is detected at power on.
• Current multiplication: Take less current from battery, output more current to motor.
• Easy installation: 3-wire potentiometer will work.
• Current meter output.
• Standard PC/Laptop computer to do programming. No special tools needed.
• User program provided. Easy to use. No cost to customers.
General Specifications:
•Frequency of Operation: 16.6kHz.
•Standby Battery Current: < 0.5mA.
•5V Sensor Supply Current: 40mA.
•Controller supply voltage range, PWR, 18V to 90V.
•Supply Current, PWR, 150mA.
•Configurable battery voltage range, B+. Max operating range: 18V to 90V.
•Analog Brake and Throttle Input: 0-5 Volts. Producing 0-5V signal with 3-wire pot.
•Full Power Operating Temperature Range: 0℃ to 50℃ (controller case temperature).
•Operating Temperature Range: -30℃ to 90℃, 100℃ shutdown (controller case temperature).
•Peak Phase Current, 10 seconds: 220A.
•Continuous Phase Current Limit: 85A.
•Maximum Battery Current: Configurable



3. Twist Hall throttle for electric Scooter or Electric bike

Inner Hole diameter  2.3mm
Throttle bar length 15CM

Wires definition

Thin Red wire +5V
Black wire  GND
White wire  Hall Signal
The throttle can be fitted to any electric scooter or electric motorcycle.
The Throttle color will be randam delivery

4.  Disc brake kits

This is complete Disc brake system for Electric scooter or Electric motorcycle with rear Wheel Hub Motor.

The system including the Brake disc, Brake handle, Caliper and Oil pipe and cables.

The color of the caliper will be delivery in random,sometimes Purple or Orange!


Some details of the disc brake as follows,


Disc Dia.: 180MM or 220MM

Disc thickness: 3MM

Oil pipe length:2.2M

Oil pipe Dia.: 7MM

Electric wire Length:40CM

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