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  1. #1
    Portland, OR i_r_beej's Avatar
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    Jun 2006
    My Bikes
    Cannondale: '94 R400; Lemond Poprad '06; Specialized Epic Marathon '06; Specialized Stumpjumper '89; Redline Proline Pro Cruiser '10
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    Suggestions for SS gearing?

    Hey all,

    I'm converting an old "clunker" MTB as a single-speed CX/hoopty bike.

    Any suggestions for where i should start the gearing? 39x17?

    39x17 is something that i can manage on my road bike pretty easily. What about off-road/CX?

    Thanks for any tips.
    Despite the fact that I constantly recommend Kool-Stop brake pads-- no, I don't work for Kool-Stop. (Although their factory is just a few blocks from my house!)

    I ride drop bars off-road. (The excellent On-One "Midge.")

  2. #2
    Senior Member jeremyb's Avatar
    Join Date
    Sep 2003
    Sacramento CA
    My Bikes
    Raleigh Grand Prix, Cervelo P3alu
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    i rode 39x20 at hillsboro accidentally, I intended 39x18 but put the wrong wheels on the bike at home. I have ridden 39x19 at all the previous pdx races. I think its better to be undergeared than over geared. At the end of the race you will be faster, i think.

    I would say 17 is stiff---but ofcourse it depends on your strength, I know its not unheard of for guys to run 39x17, im just not that strong.

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