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  1. #1
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    2014 Sensor Seatpost question

    Hi there, just picked up a used Sensor and i know its a 34.9 seatpost but do you have to use a shim for a rockshox reverb dropper post ? I dont see any mfg's out there making a 34.9 dropper post ? Or am i wrong ?

  2. #2
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    34.9 is the diameter of the outer edge of your seat tube I believe. Your seatpost CLAMP is 34.9, your seatpost is likely 31.6, which would be the inside diameter of your seat tube.. I don't own a sensor but my zaskar is this way.
    "save a plant, eat an animal"

  3. #3
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    New GTs are different, the seatpost diameter is huge!

    From the specs:
    Seat Post: RockShox Reverb Stealth, 34.9mm, 125mm drop
    Seat Clamp: All Terra Alloy Bolt-On, 38.1mm

    cmeride: the Reverb is available in the 34.9mm size. Not sure where you're from but I've seen them at *Chain Reaction Cycles | MTB | Road | TRI | Run before

  4. #4
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    For some reason sram don't have the 34.9mm option listed on the product page, but there's information about it here:

    RockShox Reverb Updates | SRAM

  5. #5
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    The MY14 Sensor & Force both use a 34.9mm post (38.1mm clamp). Droppers are available from RockShox and KS in this size (and are used oem on higher end models). If you can't find one you can use a 31.6mm post and shim it. Shims are available thru QBP that will go 34.9>31.6.

    -ska todd

  6. #6
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    Quote Originally Posted by ska todd View Post
    Shims are available thru QBP that will go 34.9>31.6.
    QBP actually doesn't carry shims this big. USE make them and they are very nice anodized aluminum. Looks lke Chainr Reaction stocks them.
    USE Aluminium Shim | Chain Reaction Cycles

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