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

    Chorus 93' compatibility with current?

    Got tired of my worn Chorus 93' front derailleur, and replaced it with a Centaur 09', hoping for improved shifting. In the first week it did amazing front derailleur shifts, but I could no longer use the 3 'big' cogs while on the little ring, as the cage is much narrower for 9/10 than 8 speed. So I adjusted..No real gain. I seem to get rubbing when on the big ring or on the small ring depending on adjustment.

    Any suggestions about bettering the performance of the current hardware
    Will I have to go back to a 8 speed Front derailleur [with lower quality shifting]
    Can I run a narrower 9 speed chain and have is shift properly, and not grind the 8 speed cogs

  2. #2
    slow as I ever was Ex Pres's Avatar
    Join Date
    Dec 2007
    the 35223 (AL)
    16 Post(s)
    0 Thread(s)
    I don't know if the new QS front derailleurs are different, but I ran a pre-QS 10s Chorus on a Shimano 600 8s (incl chain) STI setup, and currently have a pre-QS record 10s on a Shimano 9s bar-end setup, complete with a 600 tri-color 8s rear derailleur and 9s chain. I had no FD shifting issues on either bike.
    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
    82 Peugeot PXN10___c'88 Guerciotti GLX f&f

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