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  1. #1
    Join Date
    Jan 2008
    0 Post(s)
    0 Thread(s)

    GT I-Drive 5 broken Derailleur Hanger


    some 2 weeks i have bought GT I Drive 5 which is a wonderful bike.

    some 2 days ago, on a calm climb, some fence wire has entered the rims and the
    dérailleur Hanger was broken instantly.

    is it advise to replace the hanger with a CNC machined one? (like the one from pilo)
    I suspect that the original hanger (casting) is too wick...

  2. #2
    slow as I ever was Ex Pres's Avatar
    Join Date
    Dec 2007
    the 35223 (AL)
    21 Post(s)
    0 Thread(s)
    The normal stresses on a derailleur hanger can be handled by either a cast or CNC'd part.

    Don't be all that impressed with CNC. The machines can do amazing things, but the parts are not necessarily stronger than their cast counterparts.
    72 special CNC ______ 72 Frejus (ala Legnano) _73 Holdsworth Record
    74 Italvega NR_______80 Ranson__________ 80 unknown French
    83 Trek 620 (nee 600)_c'85 Gianni Motta_____ 90 Miele Gara
    02 Casati Dardo #1_____02 Casati Dardo #2 __ 03 Casati Dardo
    08 BF IRO (fixed/SS)___09 Dogma FPX magn_ 10 Vassago Fisticuff (IGH)

    For Sale: _________ 78 Raleigh Professional f&f
    82 Peugeot PXN10___c'88 Guerciotti GLX f&f

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