davidlemon
friend
Reged: 09/21/06
Posts: 37
Loc: sacramento, ca
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not having any luck finding a previous discussion of this, so... would i need a 31.8mm or a 34.9mm clamp-on front derailleur for a 52 dragonfly pro? thanks!
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Mike
contributor
Reged: 12/25/03
Posts: 101
Loc: Oregon
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All Calfees use a 34.9mm clamp size for the front deraileur
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davidlemon
friend
Reged: 09/21/06
Posts: 37
Loc: sacramento, ca
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perfect, thanks!
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skuke
captain
Reged: 12/22/03
Posts: 322
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Quote:
Mike wrote:
All Calfees use a 34.9mm clamp size for the front deraileur
Note that Calfee downtubes are 33.2mm and use a .85mm shim to bring the diameter up to 34.9mm. ...at least my Tetra is that way.
I think the shim is needed to help distribute the clamp force more equally around the seat tube.
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Skuke
95 Carbonframes Tetra Pro
92 Bridgestone MB-1
90 Moser 51.151
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dfcas
contributor
Reged: 12/19/03
Posts: 141
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I think the fiberglass shim thingy also helps prevent scratching/gouging.
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