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BB90 crank options?

Discussion in 'The Shop' started by MikeD, Oct 1, 2009.

  1. MikeD Leader and Demogogue of the Ridemonkey Satinists

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    So if I have a frame made using this new 92mm-wide BB shell with press-in bearing cups, what kind of mtb cranks will fit?

    The framebuilder said he'd like to have more real estate to work with to realize the design I'm going for. I have no objection but have no idea what cranks I can actually use...the spindle on a standard Hollowtech LX or XT will be too short, right??

    Edit: http://pvdwiki.com/index.php?title=Bottom_Bracket_Options

    Looks like I'm wrong and the standard Hollowtechs will fit, albeit barely, eh?
    Last edited: Oct 1, 2009
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  2. sanjuro Tube Smuggler

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    Is this the spec that Pivot Cycles is using?
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  3. MikeD Leader and Demogogue of the Ridemonkey Satinists

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    I dunno...
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  4. Lelandjt Active Member

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    This is the same spec that Pivot and Yeti are using. Shimano and FSA make BBs that press into it and any external bearing type crank designed for a 68 or 73mm BB shell will fit. The bearings end up in the same place as normal external cups on a 73mm shell.
    In my opinion this is the best current system and I wish my Ibis Mojo had it. Wider bearing spacing should be stronger and stiffer than BB30 and it's lighter and simpler than thread-in BB cups while making more room for pivots, swingarms, ect.
    Last edited: Oct 2, 2009
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  5. MikeD Leader and Demogogue of the Ridemonkey Satinists

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    Yeah, it came highly recommended by the designer...
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