Qs138 v3 70h motor

About this motor-

This is easily the most popular motor for electric conversions, and there’s a reason for it. It’s very versatile and can be used on anything from Go-karts to street bikes to dirt bikes. It is quite simple to mount compared to other motors on the market, and due to its popularity, it has a vast range of aftermarket parts available, including mounts and sprockets. Its internal gear reduction means you can run OEM rear sprockets on most applications. 

Package includes-

1pc Qs138 v3 70h motor

1pc 14t 428 sprocket with retaining clip

Specs from the Qs-motor Website

19:45 gear reduction
Power: 3000W (maximum 11KW, sometimes can reach 15KW)
Recommended Voltage: 72V
Rated peak RPM: 1900rpm – 2500rpm (after reduction)
Torque: 35N.m to 55N.m.
Maximum Torque: 120+nm after gear reduction
Maximum Efficiency: 92%
Waterproof Grade: IP54.
Weight: 12.3kgs (27 lbs)

Our findings-

Although Qs rates this motor for 11000w, we find that they are capable of much more. We have been able to push upwards of 32kw on 96v but have found the limiting factor of this motor is heat. As it’s an air-cooled motor, sustained hard riding at 25kw+ can and will overheat this motor. But for us intermediate riders, it tends to be a non-issue.  

Although this motor is rated for 72v, we prefer to run 84v or 96v. 

Disclaimer: This motor is rated for 11kw peak. Run more at your own risk. Be sure to monitor motor temperature.

These are Shipped Direct to Consumer

We've had a lot of feedback about selling motors on here so that people can have a one-stop shop. So we've added them to the store, we do not have any physical stock as of now. This motor will come directly from the supplier to your door. The benefits of buying from us is the convenience factor, as well as the exceptional customer service! If enough people order drivetrains through us, we will carry physical stock and offer warranties. 

Shipping Times in the US-

2-3 weeks for the fast by air option

Contact us for custom shipping quotes outside of the United States

Future of this product- 

Even though we believe this motor is a great option for most builds. Given its simplicity, ease of mounting, and price. We will be selling others soon, including The Sotion gts35 (capable of 50kw+ with water cooling)