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  1. #1
    KuskoRiverCruiser
    Reputation: qayaq_alaska's Avatar
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    Sep 2005
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    237

    New question here. Winter SS Gearing...revisited

    With the plethora of new wheelsets out there...wanted to revisit the question of gearing for SS - Single Speed and DMS - Derailleurless Multispeed Snow Bikes.

    FYI, here is the original posting and discussion:

    SingleSpeed SnoBike Gearing....

    Here is the calculator that I'm using:

    http://software.bareknucklebrigade.com/
    ____________

    Given, 80 and 100mm rims with Endomorphs, 175mm crankarm

    !st QUESTION:
    what tire size would you plug into the formula for an accurate gearinch determination.

    ____________

    The concensus in previous thread was for 'general' snow conditions ~ 38 to 40 Gear Inches was most useful.

    2nd QUESTION: Any additional thoughts on useful gear combos for SS and DMS layups? Suggestions?

    Quyana in advance....

    M
    Martin
    "The pursuit of truth and adventure is far more noble a task than looking for work",
    http://fatbikealaska.blogspot.com/

  2. #2
    is buachail foighneach me
    Reputation: sean salach's Avatar
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    Sep 2007
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    6,602
    29" or a little over. you could find the exact od of your tires by sitting on the bike and having someone hold a level across the top of the tire then measuring to the gorund from there.

  3. #3
    mtbr member
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    Aug 2007
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    Surly says that the Endo on Large Marges are 740mm in diameter and that a 29x2.1 is 737mm in diameter. I use http://www.sheldonbrown.com/gears/ to calculate my stuff. I've always thought that 32x20 with an Alfine would be a good spread.

  4. #4
    Fat!Drunk!Slow!
    Reputation: JordyB's Avatar
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    Oct 2007
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    I'm running 32x20 on 29"x2.1'" and it seems to be working pretty good.

  5. #5
    Caveman
    Reputation: Bearbait's Avatar
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    Jan 2004
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    24x22 on endos is great!
    for 29" 30-23 was pretty ideal

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