Quote:
Originally Posted by renault_megane_dci
The calculator is not really bike friendly because we have a pretty lame drive train with higher than standard (read car) transmission loss.
Yes a brand new chain is good but is only brand new for 1/20 of its life.
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There are a couple mitigating factors however, so I'm not sure what this is based on. Namely bike transmissions are usually straight cut, and chains (when tensioned properly) are more efficient than gears, especially helical.
Also if you use an even number of teeth on the front and rear sprockets, and index the chain to the sprockets, then you should see minimal stretch over the service life of the chain and sprockets (props to sheldon brown!).
Quote:
Originally Posted by PeterS
IIRC there is a real difference between O ring and non O ring chain but the main difference is a clean , preferably unworn chain . The old Honda chain guards made a BIG difference to chain condition and life.
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Yes, yes they did, without the friction of o-rings, this would be a fine retrofit for any modder.