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  1. #1
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    New question here. Which size KS Lev for Tallboy?

    I've got a size large carbon Tallboy (version 1.0) and am looking to upgrade to a dropper post. I'm struggling to find out if I'm going to run into any problems about sizing (i.e. can I run 100 vs 125 vs 150mm?). The stock Thompson post has about 85mm between saddle rails and clamp. Any advice greatly appreciated ...

  2. #2
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    If you've only got 85mm between saddle rails and seat post clamp, you won't be running any dropper post.
    Did you mean 185mm and the 85mm is just a typo?

  3. #3
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    Yep, 185mm. My apologies.

  4. #4
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    The collar on my LEV measures about 33mm in height.
    There looks to be about 20mm between where the rails sit and the bottom of the head.
    So figure on 50-55mm of height on top of what you choose for drop.
    I'd go 125 or 100 for drop if I were you.
    However, 125 seems like it's cutting it close.

  5. #5
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    That was what I was guessing as well but was hoping to eek out a little more travel. I wish KS had a little better info on their site about how to size things up. Thanks for the input.

  6. #6
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    I am 5'10" and had a 125mm KS Dropzone. All the way down it was about 1/2" to high. I then bought a KS LEV 100mm and it worked out perfect. I also, have a Lg TBC version 1

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