26 To 29er Gearing- Mtbr.com
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  1. #1
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    26 To 29er Gearing

    Going from a 24/34/46 crank on a 26" to a 22/32/44 on a 29er. With the same cassette would I find the same net results for gearing? If not, how close one way or another? I know I know ...search the threads. I did and found only partial answers.

  2. #2
    Nouveau Retrogrouch SuperModerator
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    Use this excel gear calculator: http://www.mtbtires.com/tech/gear_calc.xls
    mtbtires.com
    The trouble with common sense is it is no longer common

  3. #3
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    Quote Originally Posted by shiggy
    Use this excel gear calculator: http://www.mtbtires.com/tech/gear_calc.xls
    Thats what I needed, Thanks!

    Ok so then near as I can figure, a 30T ring on a 29er would net out about the same as a34T on a 26"?
    Last edited by Fisty; 02-19-2006 at 02:05 PM.

  4. #4
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    ?

    For any given gear combination, using it on a 29er makes it taller by ~10%. That sounds like a big trade-off (it did to me) but the improved rear grip seems to make lower gears more useful than before.

    I'd say the taller HIGH gear comes in handy far more often than the taller granny impedes me.

  5. #5
    PalmettoSolo
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    Where is the 30t

    A 30t ring is a great option, but who makes one for a four arm 104bcd.

  6. #6
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    Quote Originally Posted by Tobiasp
    A 30t ring is a great option, but who makes one for a four arm 104bcd.
    I got an experiment goin, I'll post if it works! The math works out pretty well but Im a bit concerned about the actual shifting. We will see. Fun to play and if it dont work then I got more ebay fodder lol.

  7. #7
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    Quote Originally Posted by Tobiasp
    A 30t ring is a great option, but who makes one for a four arm 104bcd.
    As far as I know, Extralite is the only one who makes a 30t 104 and that is only for 2X9 setups.

  8. #8
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    Ok Well I Confirmed Im Gettin My 2 So Here Ya Go

    Its 94 bcd though and the shifting might be slow w/o ramps and pins, Im runnin 20/30/42

    http://www.amazon.com/gp/product/B00...7Y02&n=3375251
    Last edited by Fisty; 02-23-2006 at 11:32 AM.

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