Gear Ratios the same at different sizes?- Mtbr.com
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  1. #1
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    Gear Ratios the same at different sizes?

    for example, would a 34:17 pedal, perform and feel the same as a 26:13 or a 28:14?

  2. #2
    Faster Than Your TV!
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    Well, yes and no...

    Quote Originally Posted by Scotian Lotion
    for example, would a 34:17 pedal, perform and feel the same as a 26:13 or a 28:14?
    the way I understand it. Same gear inches, but friction comes into play with more or less chain wrap between the different size cogs/chainrings. Can one feel this? Don't know...
    "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailleur? We are getting soft...As for me, give me a fixed gear!'' -- Henri Desgrange, from an article in L'Equipe

    Wrench In the Gears

  3. #3
    Nouveau Retrogrouch SuperModerator
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    Quote Originally Posted by iconoclaSSt
    the way I understand it. Same gear inches, but friction comes into play with more or less chain wrap between the different size cogs/chainrings. Can one feel this? Don't know...
    I can feel it. I first noticed it on my tandem. I have a "road gearing" crank and an "off-road gearing" crank and a flip-flop hub with a road cluster on one side and off-road on the other. At the same speed and cadence (on the same road and same tires) the 40t middle ring rides smoother and easier than the 34t middle ring.

    The small gear setups will also have increased wear on the ring, cog and chain.
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  4. #4
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    We the people ... Further reading

    Quote Originally Posted by Scotian Lotion
    for example, would a 34:17 pedal, perform and feel the same as a 26:13 or a 28:14?
    I suggest that you read this little article: http://www.nukku.net/no/nbikes.html

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