The QS 138 70h is one of the most popular mid-drive motors for high-performance electric motorcycle and go-kart builds. Compact, efficient, and incredibly durable, it delivers impressive low-end torque while remaining capable of serious top speed when paired with the right controller.

Whether you're building a lightweight commuter or a full performance electric motorcycle, the 138 70h has earned its reputation as a proven workhorse in the DIY EV community. It features hall sensors, IP67 weather resistance and supports regenerative breaking with compatible controllers.