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  1. #1
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    Releigh with cottered crank set

    I have an old Raleigh sportif that I just picked up on craigslist with cottered cranks. I was wondering what my options were as far as replacing the BB and cranks with more modern square tapers. How do I go about finding out that type of BB I will need to pick up?

    Also maybe there's other options I don't know about?

  2. #2
    Senior Member auchencrow's Avatar
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    Quote Originally Posted by surfrida2007 View Post
    I have an old Raleigh sportif that I just picked up on craigslist with cottered cranks. I was wondering what my options were as far as replacing the BB and cranks with more modern square tapers. How do I go about finding out that type of BB I will need to pick up?

    Also maybe there's other options I don't know about?
    Hi surfrida2007 -
    I am not an expert in what BB interchanges with what, but just I wondered why you want to replace the cottered crank at all. ( I know they weigh a bit, but if it isn't broke -). Plus the old cottered cranks do have a certain panache, and for the money, you could buy some accessories instead.
    - A

  3. #3
    Junior Member
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    Well I was thinking of doing a fixed gear conversion, and the gear ratio currently on there is a little high/low.

  4. #4
    Senior Member Grand Bois's Avatar
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    Then choose a cog that gives you the ratio you want. It's way cheaper to do it that way.

  5. #5
    elcraft
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    Check out: http://sheldonbrown.com/raleigh26.html#bottom This will explain your options for upgrading a Raleigh threaded bottom bracket

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