SOHC.co.uk Forums > CB500/550
What length chain do you CB500 owners fit: 98 or 100 links?
K2-K6:
Wouldn't you also need a chain of 102 links to give any semblance of repeatability ?
deltarider:
100:2= 50 (still an even numer), 98:2= 49 (odd). Is it my intuition that tells me there's the answer? ;)
K2-K6:
--- Quote from: deltarider on March 14, 2026, 12:09:54 PM ---100:2= 50 (still an even numer), 98:2= 49 (odd). Is it my intuition that tells me there's the answer? ;)
--- End quote ---
And what impact does that "50" have ?
Both 98 & 100 aren't exactly divisible by either 17 or 34, making the chain effectively "cycle" around the sprockets throughout its use. Meaning, that each tooth form will interact with a different chain link in successive rotation. That over a period of time until the mathematics repeats, eventually.
Oddjob:
You seem to be forgetting that only the 550 has a chain length of 100, the 500 is 98. The 500 uses 17/34 sprockets whereas the 550 uses 17/37 sprockets so the maths is different.
Johnwebley:
This reminds me of the old brit bikes when the cam gear is always double the crank,but the intermediate gear had an odd number of teeth to spread the wear,so called hunting tooth idea
No idea if this much thought was invested in the final drive
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