Chain keeps tightening

Rujack · 09-30-2024, 12:49 AM

Ok so I’m back to check on this thread finally.

The manual’s spec for chain slack is 1/2” - 1” on the length below the swing arm WITHOUT the rider on the bike. Which I managed to do by allowing for a little “take-up” after observing the chain tension increase as I tightened the axle nut. Thanks ProDigit for the explanation- I hadn’t realized that was happening.

Another (and previously unmentioned) observation: when rolling the bike, the chain tension will vary from too tight to having acceptable slack, which I believe supports my bent axle (or output shaft) hypothesis. Does it not? I will try to check runout on these tomorrow if I find time.

09-30-2024, 12:49 AM	#21
Rujack Join Date: Sep 2024 Posts: 6	Ok so I’m back to check on this thread finally. The manual’s spec for chain slack is 1/2” - 1” on the length below the swing arm WITHOUT the rider on the bike. Which I managed to do by allowing for a little “take-up” after observing the chain tension increase as I tightened the axle nut. Thanks ProDigit for the explanation- I hadn’t realized that was happening. Another (and previously unmentioned) observation: when rolling the bike, the chain tension will vary from too tight to having acceptable slack, which I believe supports my bent axle (or output shaft) hypothesis. Does it not? I will try to check runout on these tomorrow if I find time.
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