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Old 01-23-2009, 01:12 PM
offroad offroad is offline
Motorized Bicycle Member
Join Date: Dec 2008
Location: Connecticut
Posts: 43
Default Re: Sprocket ?'s (does size really matter?)

Someone had theorized that a slower engine lasts longer as RPM wears out the engine. In theory true. Why?:

1) Each revolution is a microscopic wear cycle. So more revolutions on friction bearing surfaces equals more wear.
2) The chemicals of combustian build up and will corrode the components. More revolutions causes more chemical exposure cycles, and more wear.
3) Metal fategue stress, as the engine is pushed faster, the stress on the metal increases proportionally. psuh to the limit and eventually physical stress will break a component through warping, that increases friction, thus heat.


One thing no one mentions is that you can increase or decrease both your front and rear sprokets. Right?
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