QSMOTOR 138 3000W V2 Mid Drive Motor With Spline Shaft
QSMOTOR 138 3000W V2 Mid Drive Motor With Spline Shaft
QSMOTOR 138 3000W V2 Mid Drive Motor With Spline Shaft
QSMOTOR 138 3000W V2 Mid Drive Motor With Spline Shaft

QSMOTOR 138 3000W V2 Mid Drive Motor With Spline Shaft

Regular price$319.00
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QSMOTOR 138 3000W V2 Mid Drive Motor With Spline Shaft

For QS 138 3000W V2 mid drive motor, it could be used for electric scooter, electric motorcycle.

It can be designed as belt driven(Default)and sprocket design(Customized).


It fits with 428 sprocket. We are able to supply 428 11T & 428 14T Sprocket, price is 7USD/PCS.


  • Specification

    Motor Type: BLDC Inner Rotor Motor

    Brand: QS Motor, QSMOTOR

    Motor Design: Single Axle

    Matched Tire: 12 inch Wheel (as default)

    Magnet Height: 70mm, 5 pole pairs

    Dimension: 162x210mm

    Rated Power: 6000W

    Peak Power: 10000W

    Rated Voltage: 72V

    Speed: 3800RPM (basic RPM)

    With Flux Weakening(RPM): 6000RPM

    Max Torque: 45-55N.m

    Cooling Method: Air Cooling

    Max Efficiency: 94%

    Continuous Battery Current: 67A (72V)

    Peak Battery Current: 140A (72V)

    Thermic Probe: KTY83/122 (as default)

    Working Temperature: 70-120C, peak 150C

    Hall Sensor: Single Hall Set with Waterproof Connectors

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

    Waterproof Grade: IP67

    Color: Black

    N.W./G.W.: approx 11kgs/12.79kgs

    Package Dimensions: 34cmx34cmx33cm/piece

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Now even better

New spline shaft, which can fit with our provided 428 sprocket more tighter, it can avoid shaft abrasion.

Motor Features

This 3000W Mid Drive Motor (V3 Version) is an ideal solution for Dirt Bike, Go Kart, ATV, Motorcycle

QS138 3000W Gearing

This motor has 19:45 gear reduction inside, the rotating is up to 1900rpm – 2500rpm after reduction.

Performance and Torque

The output torque is more than 120N.m in the shaft end.

Don't take our word for it


My son is 5 years old and racing in MightE. We switched over due to the noise from an iame engine, which he wasn't keen on, and have not regretted the decision in the slightest. Jonny at MightE, current UK distributor Dave and Rob have been extremely helpful in support and improvement within MightE




My son is in his third year of karting with MightE and has won three championships. Had we raced petrol karts I would not have been able to navigate the minefield and cost of the engines and he would not have been able to show his ability. MightE has provided us with a level playing field, with motors that are proven to be equal and which are simple for a non-mechanic like myself to manage.




I purchased my Talaria from Mighte in April and love it so far! I had a few issues with my throttle not always working correctly, but customer service has been very responsive and helped me work through the issues.




We started go karting last October with the choice of IAME & MightE.
We went down the MightE route and have never looked back.
We like the fact they're simple to use and maintain and fair across the board. The grid this season is friendly and good bunch with everyone always helping if you need any assistance. It is a perfect entry stepping stone to go karting and we look forward to hearing more about the electric cadet.



Disclaimer: Please be advised that the images displayed on our website are for illustration purposes only and may vary from the actual product you receive. While we make every effort to provide accurate and up-to-date images, variations in colour, size, design, or other visual aspects may occur due to manufacturing changes or other factors. If you have any specific questions or require further clarification, please do not hesitate to contact our customer service team before placing your order.