A bike's lowest gear, also known as easy gear, is when the chainwheel is connected to a cog in the cassette that's ...

A selection of gear ratios is desirable to maintain a good impedance match between the cyclist and the bicycle. The tooth count on the chainwheel and the rear cog determines the turn ratio between the ...

The bicycle chain transfers force from the chainwheel to the rear sprocket. The diagram shows that for a counter-clockwise rotation of the chainwheel, the top of the chain connecting to the rear ...