eli5: how do gears work on a pedal bike and how do you use them to make cycling easier?

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I’ve tried reading explanatory articles and I just don’t understand. Feels like a dumb question but they all say things like “shift down gear” and I don’t know what that actually physically means doing to the gears. Or, the articles assume I have a bike to look at and test it out on, which I don’t.

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4 Answers

Anonymous 0 Comments

Torque!

Walk over to a door in your house. The hinge is like the hub of the wheel and the distance away from the hub represents the size of the gear on the back wheel.

Place your hand on the outer edge of the door and push it horizontally to swing the door about two inches. Easy effort, 2” movement. Now slide your hand closer to the hinge and again push your hand horizontally about 2”. Harder effort, much greater movement of the door.

Cheers and pedal on!

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