I have a light tandem that makes this noise from the syncronising chainwheels and chain. It does it under high load but also when loaded at a standstill, which is how I could track it down. When loaded the frame twists and allows the chainwheels to move slightly out of line. The chain slips slightly sideways where it engages the alloy chainwheel from an angle under load and then centres on the chainwheel a bit further around and you hear the noise.
David Perth West Aust
> Subject: [CR]OFF TOPIC: tinkling sound repair problem: PLEASE HELP
>
> dear everybody,
>
> I have a really really annoying repair problem that has me vexed. it is on
a
> non-classic bike that I won't mention that begins with the letter "L"
(PLEASE
> don't anybody say "what did you expect, buying a new bike that is sort of
> brushed silvery color that starts with the letter 'L'?")--ANYWAY
>
> it makes a tinkling sound--erratic, here and there, almost always under
> stress or load (on hills and sprints) and is getting worse. we have tried:
> lubing the bottom bracket, checking the cables, changing the chain rings,
> truing the wheels, etc--STILL, that pesky almost shoe lace-in-the-spokes
> sound that just won't go away.
>
> there is a wonderful brain trust here--any ideas anybody?
>
> thanks for listening. sorry about the L word.
>
> ricky
> carrboro, nc
>
>
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