Cycling Equipment · Public discussion

downshifting problem

Started by fred · · Last activity · 2 posts · 368 views

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Cycling Equipment
Published
31 January 2006
Last activity
31 January 2006
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fred
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  1. I have an 8speed duraace sti shifter and I am having problems
    downshifting on the rear rerraileur. The only way I can get the
    shifter to downshift is by putting lateral pressure on the larger
    upshift lever. If I don't do this the smaller downshift lever is
    stuck. The problem seems to be in the STI lever not in the derraileur.
    Can this be fixed?
    A related question are shimano duraace 8 speed shifters compatable with
    8 speed ultegra and 105 sti shifters?

  2. fred said:

    I have an 8speed duraace sti shifter and I am having problems
    downshifting on the rear rerraileur. The only way I can get the
    shifter to downshift is by putting lateral pressure on the larger
    upshift lever. If I don't do this the smaller downshift lever is
    stuck. The problem seems to be in the STI lever not in the derraileur.
    Can this be fixed?

    If broken cannot fix. Tough to impossible to take them apart, no new
    small parts were ever made available from shimano. BUT flush with STI
    repair kit-WD-40, or a spray lube. Ensure the inner wire and housing
    and under BB guide are OK.

    Quoted message said:

    A related question are shimano duraace 8 speed shifters compatable with
    8 speed ultegra and 105 sti shifters?

    DA 8s shiftersa are unique BUT you can use a non DA 8s rear der by
    routing the inner wire on top of rather than underneath the rear der
    fixing bolt, to get 8s spacing.

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