Bicycle Mechanics - SR 11 12-25 cassette squeeking under load issue

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yuanja
07-21-10, 12:50 PM
Hi there, has any owner with SR11 experienced any squeeking noise under load while the chain is on the 4-6 gear cluster? This is the smaller 3 gear cluster, the larger cluster gears or smaller indvidual gears doens't make any noise.

The squeaking can happen with moderate load on a hill climb. What should I check for? The rings are definitely in the right place. I have thoroughly confirmed it. Is it a matter of greasing?

DaveSSS
07-21-10, 01:13 PM
A shot of spray lube in the area of the rivets would provide a quick answer. I've never read of such a problem and I read a lot of Campy postings.

The only creaks I've ever had while climb were from a rear skewer that needed lube and tightening. I'd be curious to know how you've isolated the noise to the cassette.
Al1943
07-21-10, 01:15 PM
Have you torqued the lockring? Maybe the cassette is loose. I've never heard of a cassette squeaking.

yuanja
07-21-10, 01:24 PM
Thanks DaveSSS, I isolated the noise by trying different combo. It's consistent with both chain-rings. As soon as I shift into this cluster of gears the creaking noise comes out. Didn't matter if it was on a larger or smaller chain ring.

What's the area of rivets, is that on the cogs?