Freewheel

part · 1869 · Industrial Revolution

Lets the wheel turn while the pedals are still.

Inventor: Shozaburo Shimano.

Principles and materials it uses

• Steel — is made of. A freewheel is steel.
• Torque — uses. It transmits torque in one direction only.

Where it is used

• Bicycle drivetrain — is part of. A freewheel.

What it is a kind of

• Ratchet — is a kind of. A ratchet.

Take Freewheel apart

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