Cycling Equipment · Public discussion

Upgrading friction to index

Started by Victor A. A Roo · · Last activity · 2 posts · 1,237 views

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Cycling Equipment
Published
23 January 2003
Last activity
23 January 2003
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Victor A. A Roo
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  1. Howdy.

    I've read some of the old threads here and have already received some advice from the very helpful
    Mr. Sheldon Brown. I would just like to confirm an issue regarding an upgrade of an old bike from
    friction to index shifting.

    I do not want to upgrade this bike to STI/Ergo shifting, and least not for the moment. Index
    shifting on the downtube is fine for now.

    Setup: (late 80's, early 90's) old Merckx frame with full Mavic group. (I mean full down to
    everything but the pedals and seat post, maybe a few other bits.) 6 speed freewheel with Shimano 600
    freewheel on there now. I have been told that simply putting on some old Shimano indexed shifters
    (likely Dura-Ace) will get me in the ballpark, with maybe an upgrade to a 7 speed freewheel. I have
    also been told that it will not work without also putting a 7 speed Dura-Ace rear derailleur.

    What say ye? Just shifters and maybe freewheel, or both + derailleur?

    Other suggestions besides Shimano parts will be considered. The objective is simply 6 or 7 speed
    index shifting with the least amount of trouble and $$ possible.

    Thank you,

    A once-was dedicated rider getting back into it.

  2. varechavalet-<< Setup: (late 80's, early 90's) old Merckx frame with full Mavic group.

    To make it index, if a SSC, non-slant parallelogram rder-find some 7 or 8s downtube shifters. Match
    the rder to the shifters only if DuraAce -go ride. The upper limit screw will give you only 5
    clicks(6 speeds) but it will work fine. If you have a more modern slant parallogram rder from mavic,
    that is shimano compatible with anything shimano except DA 8s shifters.

    Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302
    (303)440-3535 vecchios.comvecchios.com "Ruote convenzionali costruite eccezionalmente bene"

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