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New cassette chain rub

Old 08-06-23, 03:53 PM
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New cassette chain rub

NEVER MIND--FIXED IT WITH A TWIST OF THE BARREL ADJUSTER. THANKS ANYWAY!

Hi all,

I have recently swapped cassettes on my road bike. I had an 11-28, and my 54-year-old knees objected. So I put on an 11-32 along with a new chain. It shifted perfectly in the stand. On the road, under load, I'm getting some chain rub/noise happening when I'm in the big ring and the 3rd and 4th smallest cog in the rear, which never happened before with the old cassette. And in the small ring, I'm also getting some noise in the smaller cogs.

I'm running a 9-speed 105 rear deraileur with a long cage, so it should be fine. I've adjusted the b-screw appropriately.

Should I try shortening the chain by one link? Currently there's a two-link overlap in the big-big combination without running the chain through the rear derailleur. Or should I try adding a small spacer on the inside of the cassette to correct the chain line? Or do you have any other tips?

Thanks in advance--Henry

Last edited by henryspencer; 08-06-23 at 04:25 PM. Reason: Fixed problem
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Old 08-06-23, 03:59 PM
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based on the information provided which is limited, I'd suggest adding not taking out, an additional link.

what is it rubbing ON ? Front derailleur ? Chain stay ? is the rubbing noted when on the small or large front ring ?

/markp
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Old 08-06-23, 04:24 PM
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Never mind (he said sheepishly)--a simple twist of the barrel adjuster on the rd fixed it. Closing thread.
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Old 08-06-23, 04:31 PM
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Use that little black dial behind the rear derailleur. Twist to the right if grinding on the left/bigger cog and visa-vera. Hope this helps!
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