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Old 07-10-15 | 07:45 PM
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Homebrew01
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From: Ffld Cnty Connecticut

Bikes: Old Steelies I made, Old Cannondales

I think OP means that in big-big, the chain rubs the underside of the "crossbar" of the front derailleur, that spans the 2 sides of the FD cage.
And raising the derailleur to prevent rubbing, results in poor shifting.

Can you post a side view picture of the FD when in big-big ?
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Last edited by Homebrew01; 07-10-15 at 07:53 PM.
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