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  1. #1
    Newbie
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    GT I-Drive 5 broken Derailleur Hanger

    Hi

    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
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    Dec 2007
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    an imposter living in the 35223
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    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
    78 Raleigh Professional_____ 80 Ranson_____________ 80 unknown French (SS)
    82 Peugeot PXN10_________83 Trek 620 (nee 600)____ 85 Gianni Motta
    85 Trek 560______________88 Guerciotti GLX
    90 Miele Gara_____________02 Casati Dardo (g/blue)__02 Casati Dardo (y/blk)
    03 Casati Dardo___________08 BF IRO (fixed)________10 Vassago Fisticuff (IGH)

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