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  1. #1
    Join Date
    Oct 2007
    Location
    where the deer and the cantaloupe play
    Posts
    1,614

    Roadie Q's - Dura-Ace

    Are dura ace cranks (7800) compatible with other external bb systems? aren't they all the same size in terms of width, i.e. a 73mm raceface bb = a 73mm shimano bb?
    just wondering if I need a new bb for my cranks - currently FSA megaexo bb.

    Also are the new 7800 cranks compatible with non-dura-ace chainrings?
    Quote Originally Posted by Divebomber View Post
    OR sign it with a fake sig, then later they say "we have your sig!" NO you dont!

  2. #2
    Join Date
    Feb 2004
    Location
    Ut
    Posts
    1,563
    All road external bb s should be for 68mm. Your old FSA megaexo bb should work fine. Also they should work fine with non DA chainrings. I would use DA chainrings or ultegra cause i think they work better than others, but thats just my 2 cents.

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