Cycling Equipment · Public discussion

Actuation Ratio !

Started by atlantis · · Last activity · 2 posts · 694 views

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Cycling Equipment
Published
5 July 2011
Last activity
7 July 2011
Original author
atlantis
Posts
2
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Public discussion
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Topics
Drivetrain compatibilityRear derailleurs

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  1. Original post
    atlantis
    Archived post
    #1

    Hi !
    I own a Btwin forme 1 , the shifters are grip shifters Sram 3.0 comp and the rear derailleur is a Sram 3 (1:1 actuation ration)

    I plan to change the grips to trigger, following are the options :

    1> Saw this deal, but the actuation ration varies in both
    http://cgi.ebay.com/NEW-SRAM-TRX-7-SPD-TRIGGER-SHIFTER-X4-Rear-Derailleur-/330568388747.
    Is this compatible with each other?

    2. Another deal can I use these triggers with my current setup
    http://www.jensonusa.com/store/product/SL400A10-Sram+Trx+Trigger+Shifter+Set.aspx

    If someone could explain the actuation ratios , i would be grateful.
    thks

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  2. doiturself
    Archived post
    #2

    Ya can't mix SRAM shifters with Shimano ders, or Shimano ders with SRAM shifters. However you CAN use SRAM and Shimano cassettes interchangeably with either a SRAM or Shimano shifting setup (that would be all Shimano or all SRAM with respect to both shifters and ders).

    Report

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