These direct-drive mechanisms can be driven by a bicycle and attached to any number of tools, from generators to water pumps. Assembly features include wall mounting, handles for transport, shimming for a variety of bicycle tire sizes, and flexibility for different output speeds and torques.
Below are two different examples of our direct-drive bicycle generators.
Direct drives are more efficient than friction drives. Historically, any bicycle-powered generator will require some changeover of the drivetrain, such as a separate chain being looped around the driving sprocket of the bike and the driven sprocket of the generator. The design shown below allows for the efficiency of a direct drive without the need for any drive component changeover. Its uniquely engineered drivetrain allows for the bicycle chain to drive the generator from the same loop that is used for transportation. This design is in the prototype phase.
