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  1. #1
    Mountain Cyclist
    Join Date
    Oct 2007

    Reactive S suspension question (Zen)

    Alright, forgive me if this is obvious, but I was having a discussion at the shop a couple days ago and we were talking about different suspension designs...anyway, is the "Reactive S" suspension on the Zen considered a "single pivot" design?

    Someone claimed that because the Jamis XCR has a pivot where the chainstay/seatstay meet its not considered a single pivot design. I can't say thats even true, but if so, does the flexing of the seatstay on the rear triangle classify as a pivot? And does the linkage mounted to the seattube mean anything?
    Mountain Cycle Zen
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  2. #2
    mtbr member
    Join Date
    May 2008
    The zen is a single pivot. The Jamis xcr is too. Most other designs are technically four bar: Trek ABP, Specialized FSR/ Horst link, and dual links. And some single pivots are high pivot unified rear triangles and won't have the linkage mounted on the seat tube. Trek's ABP is dope- it basically is a floating brake design and also the only design to NOT attach the shock to the front triangle.

  3. #3
    G.. is offline
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    May 2009
    You know where you should be asking this

    (click that link in my sig...)
    Design Guy [SanAndreas 2.0, Zen II]

  4. #4
    mtbr member
    Reputation: Mountain Cycle Shawn's Avatar
    Join Date
    Jan 2004
    It gets me how suspension designs, so much more different and complicated compared to the SA, are also called single pivots.
    Nissan IDx Nismo
    '96 San Andreas
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  5. #5
    mtbr member
    Reputation: thekiltedskier's Avatar
    Join Date
    Feb 2007
    very good series in Dirt magazine over the last few months explaining the various systems. The Trek is actually a single pivot!
    SCOTLAND! Where men are men and sheep are scared!

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