Bicycle chain Guide, Meaning , Facts, Information and Description
A bicycle chain is a chain whose function is to transfer kinetic energy from the pedals to the drive-wheel of a bicycle (the back wheel), thus enabling the bicycle to move.The chain in use on all bicycles today is a roller chain with a 1/2" pitch and either a 1/8" or 3/32" width, the latter being prevalent on derailleur-equipped road, racing, and touring bicycles.
Earlier chain designs used on bicycles included the block chain, the skip-link chain, and the Simpson lever chain.
Before the safety bicycle, bicycles did not have chains because the pedals were attached directly to the drive-wheel. Adding the chain provided for gearing and enabled manufacturers to reduce the size of the driving wheel and cyclists to change the amount of resistance to their pedaling, according to the difficulty of the terrain. Smaller driving wheels allowed the two wheels of bicycles to be the same size, making the machines much safer.
Bicycle chains generally available today are made by:
- Campagnolo
- Shimano
- SRAM
- KMC
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