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  1. #1
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    Educog Me... Gear Science

    Despite being a fairly long-time SS'r, I have never swapped cogs or though much about it. Either push or spin when needed.
    I want to know what size rear I should be running on fairly flat gravel & hillier XC courses? My 33-20 is about perfect for most of my XC riding.
    I have the most capable SS bike set-up I have ever had & want to swap 3-4 cogs out as needed.
    Thanks!!!

  2. #2
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    Use this - Sheldon Brown's Bicycle Gear Calculator

    Then start by figuring out which cog size you think might work, based on where you are now and what you plan on using it for (one man's hilly is another man's flat).

    Trial and error, sadly.

    Good luck.

  3. #3
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    Clobber- if you've never messed with different gearing, why start now?

  4. #4
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    Quote Originally Posted by rob1035 View Post
    Clobber- if you've never messed with different gearing, why start now?
    Trails are flooded. Relegated to gravel. Climbed everything XC close to home, ready for some new challenges.

  5. #5
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    I run anything from 32x19 to 32x22 depending on which trails or area I am in. I use 32 x 15 to 16 on most of my gravel rides around the Nashville, TN area and 32 x 17 to 18 on more mountainous terrain. I have to agree, it was some trial and error and just guessing correctly. Good luck.

  6. #6
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    I bounce between 3

    36x17 - Gravel Roads, trail for a hard work out.
    34x17 - Gravel Raods, trails, good all around gear.
    32x17 - Techy, climby trail, too spinny for gravel

    29" wheels. 2.2" tires
    Last edited by goldencalf; 05-27-2013 at 07:35 PM.
    Registered pedalphile.

  7. #7
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    Those posting actual teeth counts should at least post what wheel set up they've got. 26, 27.5, 29, etc.

    Gravel rides, I like high 50's to low 60's gear inches. But as Shalom said, its all trial and error. Your gearing is specific to your trail, physical fitness, etc.

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