What belt drive cog ratios are you running?- Mtbr.com
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  1. #1
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    What belt drive cog ratios are you running?

    For those of you that are running a belt drive what cog ratios are you running and what type of terrain do you ride with it? Thanks for the info, i am starting a custom ridged belt drive project and need some input.

  2. #2
    PSYCHOLUST
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    Ratios would be the same as traditional chain driven single speeds.... As always, depending on where you ride.
    2:1 seems to be the most popular for 26 inch wheeled mountain bikes
    1.77:1 is the going norm for 29ers

    Where as someone with a chain would achieve 2:1 with a 32 tooth ring and a 16 tooth cog, someone building a belt drive can choose from front sprokets with anywhere from 39 to 60 teeth and rears from 20 to 32 ( from gates) so you might want to go with 50:25 or just under 2:1 with 39:20 or just over with 46:22......
    Good luck, we won't hear you coming

  3. #3
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    I'm running 50/25 for the flatter stuff and 46/25 for the hills,
    on a 69er
    Quote Originally Posted by thefuzzbl
    aluminium has a tendency to fail when you need it most. i.e. you end up with a bad day.

  4. #4
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    39-22 (1.77) on a 29er with big bags gets me just about anywhere I need to go.
    39-24 if it is really hilly

  5. #5
    Whatever
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    46/28 for Firecracker 50; 50/28 for everything else

    Just put up a post here with more info. Firecracker 50 has some steep climbs, and is a long race.

    My Spot is from last summer and I got a 50x28. I believe now they're using smaller front and rear cogs.
    just ride

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