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Dura Ace front derailleur help(1 post)

Dura Ace front derailleur helpridemytrek
Aug 7, 2001 6:39 PM
I am building up an old Trek 2100 (the one with the carbon main triangle and aluminum stays) with Dura Ace. My problem is the front derailleur, which calls for a clamp on. The derailleur I have is a 31.8. Is this the largest Shimano makes? I measured the diameter of the tube at 1.36". Can I make this derailleur work?