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  1. #1
    mtbr member
    Reputation: bikerboyj17's Avatar
    Join Date
    Dec 2007

    Different BB91/92 Bottom bracket models?

    I have a Kona King Kahuna frame that requires a BB92 bottom bracket.

    I've been trying to find one at a good price and when I search on ebay it seems that most of the ones that I come across have the label of "road" on the little plastic spacer that rests between the cups.

    I'm a little confused because I thought the road bottom bracket was BB86.

    Here's a link to the bottom bracket I found on ebay.

    Shimano SM-BB91-41 Bottom Bracket Adapter New | eBay

    Any help would be appreciated.

  2. #2
    mtbr member
    Join Date
    Sep 2010
    You are looking for this: HT2 (SMBB91-41A) n/a (press-fit) BB92-MTB (92mm)

    The difference is the width of the cups, 92 for MTB applications. They are not too costly.

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