Ultegra RD-6600 Chain clatter
I have just replaced a Tiagra 4500 to a Ultegra 6600 rear mech. I now get terrible chain clatter in the 11 tooth cog on a 25-11 cassette , with a 25-12 no problems at all on the 12 tooth cog. The mech is a medium cage. I shortened the chain, adjusted the tension screw and the limit screw but no joy. The mech is supposed to cope with 11 teeth.
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Are you using the 11t lockring? A 12t lockring would prevent the chain from fully engaging the 11t sprocket teeth.0
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I'll have to check, maybe I got them mixed up when swapping them over0
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Easily done!0
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PK1 wrote:I have just replaced a Tiagra 4500 to a Ultegra 6600 rear mech. I now get terrible chain clatter in the 11 tooth cog on a 25-11 cassette , with a 25-12 no problems at all on the 12 tooth cog. The mech is a medium cage. I shortened the chain, adjusted the tension screw and the limit screw but no joy. The mech is supposed to cope with 11 teeth.
no need to adjust the B tension screw.
and often the stops dont need adjusting.
what was the new cassette?"Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
Parktools :?:SheldonBrown0 -
And unless its a triple I would have gone short cage.0
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It is a triple and I did all thise things to try and stop the noise.0
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Spot on keef66. Wrong lock nut. Cheers0
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I like the easy ones! Glad I could help.0