January 1989
a chain
Bicycle chain
no it is a lever
bicycle
A bicycle designer uses maths to work out the frame angles, and the gearing. The number of teeth on the chainwheels, sprockets (cassette), chain length, and so on, all depend on maths.
It protects the chain from rain and road grime and it protects your trouser legs from chain gunk.
pulley
The chain is wrapped around a cogwheel, which could be described as a pulley.
A deraileur is the device that shifts the chain to different cogs on a bicycle.
The pedals, crank, chain, sprockets, and wheels. Along with the rider, they all work together to make the bicycle go.
It's a type of chain known as a roller chain that is used to transfer power from the cranks to the rear wheel of the bike.
It's a type of chain known as a roller chain that is used to transfer power from the cranks to the rear wheel of the bike.