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  1. #1
    mtbr member
    Join Date
    Mar 2010

    Stupid SRAM question...

    Will say a regular SRAM X7 shifter work with say a SRAM X7 ESP derailleur? What the heck is ESP anyways?

    Sorry for the newbish questions.

  2. #2
    Former Bike Wrench
    Reputation: mtnbiker72's Avatar
    Join Date
    Jan 2007
    ESP is a term they used for many years to refer to their 1:1 actuation shift ratio...I haven't seen SRAM use it for a while but all ESP derailleurs would be compatible with current X series (except XX) shifters.

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