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.
Once the tire is at the correct pressure, the pump valve is removed from the tire, and the cap can be replaced on the tire valve. There are two types of tire valves to which the bicycle tire pump attaches. These are the Presta valve and the Schrader valve, with the Presta valve being the most popular.