Re: Clonk and whirr
The whirr sounds like the chain. After replacing the OEM front sprocket with one without the rubber cushion I have noticed an increase in chain noise.
Didn't help that my Scottoiler had run out and the chain was starting to run dry.
If the chain is well lubed you may have a tight spot in it.
Rotate your wheel and see if the chain rises at a specific point, if it does you should re-adjust your chain whilst it's on the tight spot.
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