hollowtech II bottom brackets

DiscoBoy
DiscoBoy Posts: 905
edited May 2014 in Workshop
Are they interchangeable? More specifically, is it possible to use 9000 or 6800 bottom brackets with a 5700 crankset?
Red bikes are the fastest.

Comments

  • mitchgixer6
    mitchgixer6 Posts: 729
    Yeah they're all the same internal diameter. I'm currently using a 6800 bb with an old Tiagra crank. The new ones have a smaller outside diameter but there is a tool included for installation.
  • DiscoBoy
    DiscoBoy Posts: 905
    mitchgixer6 wrote:
    Yeah they're all the same internal diameter. I'm currently using a 6800 bb with an old Tiagra crank. The new ones have a smaller outside diameter but there is a tool included for installation.

    Nice one, thank you :)
    Red bikes are the fastest.
  • term1te
    term1te Posts: 1,462
    Yep, I'm using a 7900 BB with a 6600 chainset on one bike and a 9000BB with a 6800 chainset on another.
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  • vorsprung
    vorsprung Posts: 1,953
    The ultegra grade BB seems to last longer than the lower grade ones

    Hope make a replacement BB that is even better, with stainless steel bearings. Have this on the best bike :)
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  • veronese68
    veronese68 Posts: 27,817
    CRC have Ultegra ones for £13.99 at the moment. Got Evans to price match and picked one up on the way home the other evening.

    Edit: Having just bought one I get an email from Merlin with the same one discounted to £10.75. Typical! :lol:
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