How Chains Wear: Difference between revisions
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Motorcycles and bicycles both use what is called a 'bushing' chain. Bicycles over five speeds must use a 'bushingless' chain, due to the great angular displacement between cogs. Motorcycles tend to add o-rings within the chain parts for keeping dirt out and lube in the inner workings of the chain. | Motorcycles and bicycles both use what is called a 'bushing' chain. Bicycles over five speeds must use a 'bushingless' chain, due to the great angular displacement between cogs. Motorcycles tend to add o-rings within the chain parts for keeping dirt out and lube in the inner workings of the chain. | ||
===The ' | ===The 'Stretch' Myth=== | ||
Chains do not stretch, they wear. Strech of the materials in the chain is impossible given the relatively small forces that a motorcycle or bicycle can generate. The wear takes place where the pin from one link meets the bushing (or plates) of the next link. Interestingly, Since on every other link two pins are shared by one outer plate, The chain changes length only between every other link. | Chains do not stretch, they wear. Strech of the materials in the chain is impossible given the relatively small forces that a motorcycle or bicycle can generate. The wear takes place where the pin from one link meets the bushing (or plates) of the next link. Interestingly, Since on every other link two pins are shared by one outer plate, The chain changes length only between every other link. | ||
Revision as of 21:28, 18 December 2006
Different types of chains
Motorcycles and bicycles both use what is called a 'bushing' chain. Bicycles over five speeds must use a 'bushingless' chain, due to the great angular displacement between cogs. Motorcycles tend to add o-rings within the chain parts for keeping dirt out and lube in the inner workings of the chain.
The 'Stretch' Myth
Chains do not stretch, they wear. Strech of the materials in the chain is impossible given the relatively small forces that a motorcycle or bicycle can generate. The wear takes place where the pin from one link meets the bushing (or plates) of the next link. Interestingly, Since on every other link two pins are shared by one outer plate, The chain changes length only between every other link.
Bicycle Chain Limits
Replace a bicycle chain after it has elongated 0.5 %.
