Chain drive and electric generator: what they have in common

1. Step 1. Chain drive — is used in — Bicycle drivetrain. A bicycle drivetrain is a classic chain drive.
2. Step 2. Bicycle drivetrain — is part of — Bicycle. The drivetrain transfers the force of the legs to the rear wheel — the main difference from a kick scooter.
3. Step 3. Bicycle — has part — Bike light with dynamo. A lamp.
4. Step 4. Bike light with dynamo — has part — Electric generator. A dynamo.

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