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 Post subject: Chains and Slipping....
PostPosted: Thu May 19, 2011 11:47 am 
Dirt Disciple
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Joined: Sun Jul 18, 2010 4:17 pm
Posts: 17
Location: Banbury
I was wondering if a cheap chain can lead to it slipping, I have recently changed my block and chain for new version and all was good for a short while, however the other night it started slipping, just in the small cog @ the back and it makes a horrible noise.....It only feels like it slips one tooth but my immediate reaction is to ease up so I don't know if it would slip further if I kept applying pressure....
The chain is a generic and the block is even more generic, I'm in the process of trying to find a new Campag derailer so will get a nice period block for when I have this but I just need to be able to ride it at the moment...
Do chains stretch? If so would this be a symptom? The bike does have drop out adjusters but I'm not sure if these would help?
Any advice would be much appreciated!
Happy Riding
Tom


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 Post subject:
PostPosted: Thu May 19, 2011 12:29 pm 
Old School Grand Master

Joined: Tue Oct 09, 2007 1:55 pm
Posts: 8209
Location: New Forest, UK
If you have just changed the chain, I suspect that you have a tight link. It does feel ghastly when the tight link jumps on the cog.


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 Post subject:
PostPosted: Thu May 19, 2011 1:23 pm 
retrobike rider
retrobike rider

Joined: Fri Jan 29, 2010 11:57 am
Posts: 308
Location: Devon
Agreed could be a tight link, wind the pedals backward and watch how the chain runs over the block and down to the jockey wheels on the rear mech.
If there's a tight link or even a part missing then it will become apparent.


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 Post subject:
PostPosted: Fri May 20, 2011 5:15 pm 
Dirt Disciple

Joined: Tue Sep 14, 2010 4:10 pm
Posts: 20
Have you checked the chain length? Could be too long.

I recently had this sort of slippage, but that was a new chain on an old cassette. Was the cassette / block new?


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 Post subject:
PostPosted: Fri May 20, 2011 8:54 pm 
Dirt Disciple
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Joined: Sun Jul 18, 2010 4:17 pm
Posts: 17
Location: Banbury
Both the chain and block were about 2 months old...turns out I managed to split the two smallest gears...
Block replaced so should be up and running
Wonder how long this one will last...
Thanks for the ideas though!!


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