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  1. #1
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    KCNC BB30 to Shimano Hollowtech BB adaptor

    Does anyone have any experience with the KCNC BB30 to Shimano 24mm crank adaptor? This gadget includes the bearings with the 42mm dimension BB30 surface and 24mm Hollowtech crank surface all in one unit.

    I have a BB30 road frame coming that I need to run a DA7900 crank in, and have been looking at the various adaptors available. I like the look of this unit, if for no other reason than that the press-fit is achieved by screwing the two cups together with the regular Hollowtech tool. Neat. But that's a moot point if it's a poor design or is unreliable or the bearings only last a month or something.

    Appreciate comments. Thanks.


  2. #2
    Have bike, will travel Barrettscv's Avatar
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    Feb 2006
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    Edwardsville or Chicago Illinois
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    Peugeot PX10, Serotta Nova X, Simoncini Cyclocross Special, Origin8 monstercross, Pedal Force CG2 and CX2
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    My KCNC BB adapter failed at 2000 miles. My first BB failure ever, however, I'm not sure what caused the failure.
    When I ride my bike I feel free and happy and strong. I'm liberated from the usual nonsense of day to day life. Solid, dependable, silent, my bike is my horse, my fighter jet, my island, my friend. Together we will conquer that hill and thereafter the world.

  3. #3
    pmt
    pmt is offline
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    What's failed about it?

  4. #4
    Have bike, will travel Barrettscv's Avatar
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    Feb 2006
    Location
    Edwardsville or Chicago Illinois
    My Bikes
    Peugeot PX10, Serotta Nova X, Simoncini Cyclocross Special, Origin8 monstercross, Pedal Force CG2 and CX2
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    The anti-friction bearings are producing plenty of friction. I'm getting a better opinion tomorrow.
    When I ride my bike I feel free and happy and strong. I'm liberated from the usual nonsense of day to day life. Solid, dependable, silent, my bike is my horse, my fighter jet, my island, my friend. Together we will conquer that hill and thereafter the world.

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