Devices and methods for overhead cranks

A method of modifying an overhead crank with thea crank extension device wherein the overhead crank comprises a crank shaft having a rotational axis for operating the crank, a crank arm extending from the crank shaft, and a crank handle that protrudes at a downward angle from the crank arm, and the crank extension device comprises:

• a shell configured to fit over and apply force to the crank arm and comprising an aperture for the crank shaft to pass through, wherein the shell comprises a shell roof, a shell wall extending from the shell roof, and the shell has an open bottom;
• and
• an extension connected to or integral with the shell, wherein the extension has an extension axis offset from the rotational axis of the crank shaft,
• the method comprising:
• passing the crank shaft through the aperture;
• placing the shell over the crank handle;
• and
• attaching the crank shaft to a cranked object, wherein the shell is fixed in position between the crank handle and the cranked object.