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  1. #1
    Join Date
    Jan 2006
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    03 TCR 1 (alloy) derailleur question

    Anyone out there with a Giant TCR 1 alloy frame/bike know which size front derailleur it takes. I can get a braze on, but I need to know which size adaptor clamp to buy. I'm building an 03 frame up with Ultegra components. I have a triple crank with a 10 speed cassette. Also (maybe this doesn't apply, but) do I need to use a long cage or short cage rear derailleur? My apologies if this is a redundant question, but I can't get the search engine to work.

  2. #2
    Senior Member Retro Grouch's Avatar
    Join Date
    Feb 2004
    St Peters, Missouri
    My Bikes
    Rans Rockst (Retro rocket) Rans Enduro Sport (Retro racket) Hase Kettweisel Tandem (redundent recumbent), Merin Bear Valley (The gopher).
    6 Post(s)
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    Sometimes one measurement is worth a thousand guesses. You don't even need a caliper. Wrap a piece of paper around your seat tube and mark where it crosses itself. Measure that distance in millimeters and divide by 3.14. That's the seat tube clamp size.

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