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  1. #1
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    1x1 seat post clamp size?

    Title says it all. I need to know what size clamp I need for my 1x1.

  2. #2
    PRETENDURO
    Reputation: Leopold Porkstacker's Avatar
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    27.2
    QUOTE from MTBR.COM: You have given Brewtality too much Reputation in the last 24 hours, try again later.

  3. #3
    lpt1
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    30.0 - from specification
    29.5 - my measurements (in tight close position) on 2006 Year 1x1
    27.2 - seatpost, not seatpost clamp

  4. #4
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    I have a 2005 frame, but I doubt the sizes have changed at all, so I'm going to look for the 30.0mm clamp.

  5. #5
    lpt1
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    Ok,
    But I have some issue with Surly 30.0mm Stainless Steel Seatpost Clamp
    Stainless Steel Seatpost Clamp | Parts | Surly Bikes

    Actual inner diameter of clamp is approx. 30.5mm (when clamp bolt is in line with its counterpart thread), but actual outer diameter of seat tube (in tight close position) is approx. 29.5mm. So the clamp bolt has repetitive bents and finally become broken.
    Now I am using handmade 0.3mm shim from shaving gel ballon between seat tube and clamp, and the bolt sits straight!

  6. #6
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    On my Troll and Karate Monkey I've replaced the SS clamp with the Surly Restrictor clamps to stop the seat post from slipping or damaging the SS clamp. On the Steamroller and LHT the SS clamp seems to work fine.

  7. #7
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    I didn't have any issues with the ss surly one on my 1x1 or cc... I have an extra if interested.

  8. #8
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    I ordered a Salsa Lip Lock (in silver) from the LBS today. Looks like a nice clamp

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