Most torque converters have a stall speed around 2000 - 2500 RPM. Which also happens to be the RPM range that your vehicle normally runs at cruising speed. At a lower speed you would be simply running a viscous coupling between the engine and transmission.
Then, thereâs the obvious choice: A dynamo attached to one of the bike wheels. (These devices in general are called generators, but when attached to a bike, a generator is traditionally referred to as a dynamo.
Technical Article: Motorcycle Stators - What Are They? In simple terms, a stator can be defined as the stationary part of an alternator. In order to understand what the stator does, it is helpful to know how a basic electrical system works. The electrical system on most vehicles includes a way to generate, store, and use electricity.