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  1. #1
    Senior Member cod.peace's Avatar
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    Easiest path to 170mm cranks?

    Hi all. I'm interested in installing shorter cranks on my bike. Right now it has a Shimano 9-speed 105 triple crankset, FC-5503. The BB works just fine, I'm just wondering what the crank capability might be. Does anyone know what type of BB shipped with this crankset? I think they date to 1999 or so. Is it easiest to just stick with Shimano offerings, perhaps used Ultegra or Dura-Ace? Thanks!
    old steel Specialized Hardrock

  2. #2
    Older than dirt CCrew's Avatar
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    5503 should have used the Shimano BB-5500 BB.

  3. #3
    Senior Member cod.peace's Avatar
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    Quote Originally Posted by CCrew View Post
    5503 should have used the Shimano BB-5500 BB.
    Thanks. So that means either finding some used Shimano cranks or just replacing the whole crankset/BB assembly altogether, right?
    old steel Specialized Hardrock

  4. #4
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    The latest and greatest uses a different bearing assembly.

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