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  1. #1
    Newbie
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    Jan 2009
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    Upgrade crank sprockets

    I've bee using an old mountain bike to get around in Sheffield. It's a hilly place and need the lowest gears.
    The bike needs some repars so I'm on the old raleigh which turns out to be much more effiecient on the flat but a real strain on the hills; it only has 2 front spockets and the rear speockets are also smaller than the MTB.

    What would be the issues for replacing the front crank 2 sprockets with a 3 sprocket variety?

    Thanks
    Steve

  2. #2
    Decrepit Member Abacus's Avatar
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    Dec 2008
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    Sydney, Australia
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    2003 Trek 520, 1996 Trek 370, 1996 Bianchi Osprey, too many others.
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    How old is the Raleigh?

    What crankset is on it at the moment?

  3. #3
    Lanky Lass East Hill's Avatar
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    Sep 2005
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    Take a deep breath, and ask--What would Sheldon do?
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    Nishiki Nut! International, Pro, Olympic 12, Sport mixte, and others too numerous to mention.
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    Steve, are you there?

    East Hill
    ___________________________________________________
    TRY EMPATHY & HAVE LOVE IN YOUR HEART, PERHAPS I'LL SEE YOU ON THE ROAD...

  4. #4
    Newbie
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    The bike is about 25 years old (16th bithday) - Raleigh Magnum.
    The front crank and sprockets were replaced a few years ago.
    I think rey're Shimano probably about 8inch & 7inch diameter.
    Could do with something like 5inch.

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