Qsmotor 138 4000W 90h 7500W Continuous 72V 100kph MID Drive Motor

• After-sales Service: Yes
• Warranty: Yes
• Type: Motorcycle Engine
• Certification: CCC, CE
• Material: Alloy
• Voltage: 72V as Default
• Model NO.: QS-138 4kw kit
• Design: Brushless
• Place of Origin: Zhejiang, China
• Model Number: Zz-138-4000W
• Brand Name: QS Motor
• Continuous Current(a): 60A
• Max Speed: 45kph-55kph
• Application: Electric Bicycle, Motorcycle
• Waterproof Grade: IP65
• Speed(Rpm): 4400rpm
• Transport Package: Carton with Foam
• Specification: 4000w
• Trademark: QS
• Origin: China
• HS Code: 8711600010
• Production Capacity: 500000pieces/Year

Product Description

QSMOTOR 138 4000W 90H 7500W Max continuous 72V 110KPH Mid drive Motor conversion kit with EM200SP Controller

For 138 90H motor powertrain kits, it could be used for electric motorcycle, which could be 72V 110KPH.

e.g. Dirt bike

E-motorcycle weight, approx 130kg+2*80kg

Speed: continuous 110km/h

Gear ratio: 1:2.3*3 (double steps transmission )

Climbing slope: 30°@208kg

Battery: 72V52h

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. 

 

One set including below kits

1. 1pc X QS 138 4kW Mid drive motor with 14T 428 sprocket adapter

2. 1pcs X EM200SP 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-motorcycle. 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.SPECIFICATION 
 

Motor Type	PMSM Inner Rotor Motor	Motor design	single alex
Brand	QS Motor, QS MOTOR	Matched wheel	17 inch (as default)
Magnet Height	90mm,5 pole pairs	Diameter of stator	120mm
Stator	Steel core	Rated power	4000w(Max continue 7500w)
Rated Voltage	72v (as default)	Speed	4000RPM
Thermic Probe	KTY83/122(as default)	Max Effciency	94%
Hall sensor Phasing angle	120 degree	Hall sensor	Single hall plate with waterproof connectors
Phase wire	20mm² cross section	Waterproof grade	IP67
Color	Black	N.W/G.W	10.8kgs/11.5kgs
Package Dimension	34cm*34cm*33cm

Drawing: