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help!(4 posts)

help!doc (tro)
Jul 7, 2001 10:05 PM
I have Shimano SORA components and while I'm sure that this is a contributing factor there has to be a solution...

now it gets pretty quiet up in the hills of Glastonbury and I can hear my chain on the gears louder than anything....I have been farting around with the noise for a while now and I can't really find it...

however it is in/around the rear derailleur...
I do have Triflow on the chain and gears...
I also do have a little bit of gunk on the pulleys and the walls of the chain links...
I also played around with the adjustments on the derailleur according to Bicycling magazine...and it seems to be fine...

any advice/clues will be much appreciated...
re: help!Chas
Jul 7, 2001 10:12 PM
I hate drivetrain noise with a passion. I'd start by cleaning all the gunk off, relube and try it out. If noise persists and your sure everything is adjusted correctly it may be time for a new chain.
Measure chainKerry Irons
Jul 8, 2001 6:03 PM
If you have more than 0.5% elongation (from the original 12 inches per 24 links) you should consider replacing the chain, and most likely the cassette as well. If you have 1% elongation (1/8" per 24 links), then you should definitely replace them. Recognize that SORA is pretty low on the Shimano list, so the stuff will wear pretty quickly. It's easy to throw out "replace at XXX miles" but that is not too useful as the riding conditions and maintenance the chain sees will significantly impact its life.
check the park tool website's workshopHaiku d'état
Jul 9, 2001 7:05 AM
here...

good step by step on how to adjust r.der limit screws and then go on to the index shifting, then fine-tune it. sounds like you may have it close, but not perfect, and the chain may be slighly rubbing on the next cog in line. it talks a bit about that...

good luck!