
QSMOTOR 138 4000W Air Cooled Mid Drive Motor Kit
QS138 4000W Mid Drive Motor Kit
UK Stock Fast Delivery
Feature
- Light weight and small dimension compare to hub motor
- High performance benefit from flux weakening
- High efficiency during climbing, and better acceleration
- Support regenerative braking
Product details:
- Motor Type: BLDC Inner rotor motor
- Brand: QS Motor
- Magnet Height: 90mm 5 pole pairs
- Rated Power: 7500W
- Speed: 4000RPM
- Max Torque: 72 N.m
- Cooling Method: Air cooling
- Working Temperature:70-120°C Peak 150°C
- Phase Wire: 20mm²
- Colour: Black
- Net Weight: 13kg
- Package Dimensions: 34cm*34cm*34cm
Package Included
- 1 X QS 138 4kW 14T sprocket
- 1 X Fardrive ND72680 controller with Bluetooth
- 1 X Throttle with switch
- 1 X Display
- 1 X Harness Wire
- 1 X Ignition Switch
- 1 X DC-DC Converter
Shipping information: We offer free shipping and we dispatch same or next day Monday to Friday.
Guarantee: Offer a money-back guarantee or warranty to give the customer peace of mind when making a purchase.
Feedback:Your satisfaction and positive feedback is very important for us, if you have any problems, don't hesitate to contact us. We'll do our best to serve you.
More Images














QSMOTOR 138 4000W Air Cooled Mid Drive Motor Kit
QS138 4000W Mid Drive Motor Kit
UK Stock Fast Delivery
Feature
- Light weight and small dimension compare to hub motor
- High performance benefit from flux weakening
- High efficiency during climbing, and better acceleration
- Support regenerative braking
Product details:
- Motor Type: BLDC Inner rotor motor
- Brand: QS Motor
- Magnet Height: 90mm 5 pole pairs
- Rated Power: 7500W
- Speed: 4000RPM
- Max Torque: 72 N.m
- Cooling Method: Air cooling
- Working Temperature:70-120°C Peak 150°C
- Phase Wire: 20mm²
- Colour: Black
- Net Weight: 13kg
- Package Dimensions: 34cm*34cm*34cm
Package Included
- 1 X QS 138 4kW 14T sprocket
- 1 X Fardrive ND72680 controller with Bluetooth
- 1 X Throttle with switch
- 1 X Display
- 1 X Harness Wire
- 1 X Ignition Switch
- 1 X DC-DC Converter
Shipping information: We offer free shipping and we dispatch same or next day Monday to Friday.
Guarantee: Offer a money-back guarantee or warranty to give the customer peace of mind when making a purchase.
Feedback:Your satisfaction and positive feedback is very important for us, if you have any problems, don't hesitate to contact us. We'll do our best to serve you.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
QS138 4000W Mid Drive Motor Kit
UK Stock Fast Delivery
Feature
- Light weight and small dimension compare to hub motor
- High performance benefit from flux weakening
- High efficiency during climbing, and better acceleration
- Support regenerative braking
Product details:
- Motor Type: BLDC Inner rotor motor
- Brand: QS Motor
- Magnet Height: 90mm 5 pole pairs
- Rated Power: 7500W
- Speed: 4000RPM
- Max Torque: 72 N.m
- Cooling Method: Air cooling
- Working Temperature:70-120°C Peak 150°C
- Phase Wire: 20mm²
- Colour: Black
- Net Weight: 13kg
- Package Dimensions: 34cm*34cm*34cm
Package Included
- 1 X QS 138 4kW 14T sprocket
- 1 X Fardrive ND72680 controller with Bluetooth
- 1 X Throttle with switch
- 1 X Display
- 1 X Harness Wire
- 1 X Ignition Switch
- 1 X DC-DC Converter
Shipping information: We offer free shipping and we dispatch same or next day Monday to Friday.
Guarantee: Offer a money-back guarantee or warranty to give the customer peace of mind when making a purchase.
Feedback:Your satisfaction and positive feedback is very important for us, if you have any problems, don't hesitate to contact us. We'll do our best to serve you.





















