Noise at rear.... oooooer!

Signal_ rabbit · 29-09-2008 9:40am #1

I get an irregular noise coming from my rear sprockets, It only happens in the very low gears going uphill, i.e when under pressure.

The gears in the rear are properly indexed,
The jockey wheels are all aligned correctly,
The sprockets have only 1600miles on them and do not appear to be loose, have removed and re-tightened.
The noise seems to be a 'light' mettallic scrape noise,
It happens when in and out of the saddle,
There are no stiff links in the chain, the chain is not worn and all is lubed well.

Any one have any suggestions to what it could be?

Chips Lovell · 29-09-2008 9:42am

Are you out of the saddle when you hear it?

Signal_ rabbit · 29-09-2008 9:44am

Both in and out the saddle

Chips Lovell · 29-09-2008 10:10am

OK. And are you positive that it's from the rear sprockets? For example, are you sure that the chain isn't rubbing the front derailleur when in that gear combo?

blorg · 29-09-2008 10:26am

Could the derailleur be rubbing a spoke? This would only happen in the innermost sprocket.

Signal_ rabbit · 29-09-2008 10:31am

el tonto wrote: »

OK. And are you positive that it's from the rear sprockets? For example, are you sure that the chain isn't rubbing the front derailleur when in that gear combo?

Yeah defo, got my buddy to tail me, its almost like a 'straining' type noise.

Signal_ rabbit · 29-09-2008 10:32am

blorg wrote: »

Could the derailleur be rubbing a spoke? This would only happen in the innermost sprocket.

No not that either, its driving me nuts!!!!!!!! Maybe if i put an extra chain link in? dunno now just clutching at straws.

Noise at rear.... oooooer!

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