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Shimming front derailleur?

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Old 05-22-17 | 08:56 AM
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Shimming front derailleur?

Would using a 34.9mm front der on a 28.6mm tube work, or is that too weird?
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Old 05-22-17 | 09:20 AM
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Bikes: Current 79 Nishiki Custum Sport, Jeunet 620, notable previous bikes P.K. Ripper loop tail, Kawahara Laser Lite, Paramount Track full chrome, Raliegh Internatioanl, Motobecan Super Mirage. 59 Crown royak 3 speed

It will work fine if you get the right adapter part SM-AD16S, so I guess it's not too weird if since Shimano makes a part for this.. Also you can likely go likely with nearly any nicer Shimano FD that it 28.6 for most setups.
Shimano SM-AD16S Sizing adapters(34.9-- 28.6mm) for Band-Clamp Front Derailleurs | eBay
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Old 05-22-17 | 10:00 AM
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Bikes: 199? Landshark Roadshark, 198? Mondonico Diamond, 1987 Panasonic DX-5000, 1987 Bianchi Limited, Univega... Chrome..., 1989 Schwinn Woodlands, Motobecane USA Record, Raleigh Tokul 2

People shim FDs all of the time. Hell, I've seen bikes come with FDs shimmed from the factory.
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Old 05-22-17 | 11:47 AM
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Yes some models of modern FD's come with the large size clamp and shims to fit smaller tubing new.
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