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New Reduced price! QS 3000W 138 70H qsmotor electric bike motor mid drive kits View larger

QS 3000W 138 70H qsmotor electric bike motor mid drive kits


New product

Item Weight 62
Item Length 52
Brand Name QSMOTOR
Waterproof IP54
Country/Region of Manufacture China
Other Part Number a
Material Type aluminum
Manufacturer Part Number motor
Item Height 40
Interchange Part Number a
Max. speed 20-70KPH
Special Features driving
Color Black
Placement on Vehicle Rear
Item Width 52
Efficiency >92%
Certification CE By SGS, ISO9000, TS16949
Design Mid Drive Motor
Package Weight 62.0kg (136.69lb.)
Unit Type piece
Package Size 52cm x 52cm x 40cm (20.47in x 20.47in x 15.75in)

QS 3000W 138 70H Mid Drive Motor Assembly Kit For Electric Bike, under developing

For 138 3000W mid drive motor kit assembly, it could be used for electric scooter, electric motorcycle.

It could be 72V 90KPH, only avaiable for 12inch wheel kits (We might make bigger wheel & more powerful motor in near future.).



QS Motor 3000W 138 70H Mid Drive Motor

Motor Type: BLDC Permanent Magnet Inner Rotor Motor With Hall Sensor

Brand: QS Motor,QSMOTOR

Motor Design: Single axle

Matched Wheel: 12inch Wheel (as default)

Magnet Height: 70mm, 40pcs, 5 pole pairs

Diameter of stator: 138mm

Rated Power: 3000W (peak power, pending)

Rated Voltage: 72V as default

Speed: 90KPH

No-load rpm: 4400rpm without flux weakening, 6500RPM with flux weakening.

Max Torque: approx 56N.m (without Reduction ratio)

Reduction ratio: 1:4.7 (as default)

Max Efficiency: pending

Continuous Battery Current: pending (72V)

Peak Battery Current: 120A (72V)

Suggest Peak Phase Current: 450A

Thermic Probe: None (KTY83/122 is available for sample).

Working Temperature: pending

Single Hall Plate with waterproof connectors

16mm² Cross Section of Phase Wire (not include insulation layer)

Hall Sensor Phasing angle: 120 degree

Waterproof Grade: IP54

Color: Black

N.W./G.W.: Pending Package Dimension: Pending/piece


VOTOL EM-150, 24 MOSFET, 120A peak battery current, 360A peak phase current (5s)

The Kits include as below.

·1pc QS 3000W Mid Drive Motor with Left/Right fork


·1pc Rear synchronous belt wheel

·2pcs Decoration cover

·1pc Rear axle with screws

·2pcs Adapter

·1pc Synchronous belt

·1pc 12inch Aluminmun wheel

·1pc fender

·1pc Belt shield

·1pc Belt side shield

For the pakage, we will pack in two carton with wooden support.

70cm*39cm*25cm, 22.53kg

51cm*48cm*37.5cm, 12kg

​ For QSMOTOR 3000W mid drive motor kits (include controller, w/o tire or disc), (on-line).

If without controller, there will be USD 200.0 less.

For 3000W mid drive motor, it\'s .

For Adelin Caliper with normal 220mm disc, .

For 220mm floating disc, there will be USD 24.0 more.

PS. Other controller might not easy to fit with our mid drive motor, we suggest to get controller sample for testing.

QS Motor Notice Before Order (Producing time/Warranty/Package/Certidication etc.)

Pls. click below hyperlink of picture.



If you are interested to buy the electirc scooter installed this motor kits, pls. click the hyperlink of below picture.

No QS Motor, No Super EVs!

Tags: kit kits, kit electric, kit motor bike, Cheap kit kits, High Quality kit electric, China kit motor bike Suppliers.

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QS 3000W 138 70H qsmotor electric bike motor mid drive kits

QS 3000W 138 70H qsmotor electric bike motor mid drive kits

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