Join Date: Apr 2009
Location: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
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Record pulleys are easy to remove, fieldstrip and oil, so I'd start there because it can't hurt. Do one at a time, with the chain in place and you (almost) can't screw it up.
If it's very noisy, though, take a good look at how you routed the chain. There's a tab which closes the RD cage between the pulleys and it's easy to accidentally route the chain outside rather than inside the tab. The noise would the chain sawing through the tab.
Other than that you might just be hearing the effects of a new chain running on worn chainrings.
An ounce of diagnosis is worth a pound of cure.
“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin
“One accurate measurement is worth a thousand expert opinions”
- Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance