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  1. #1
    Ride for Life wearyourtruth's Avatar
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    italian threaded fork with an ISO headset?

    i have been researching around but i keep getting conflicting information on this... i've heard that italian dimensions are fairly interchangable with ISO (with the exception of BB of course) but i also heard that the thread angle is different, 60* vs 55* my specific concern is putting a fork with italian threads on a bike that already has an ISO headset. is that a problem? i would think it might be, and i've heard from some not to do it, but i hear from others that it'll be fine???
    before posting, a "noob" should always ask themselves "could this have been answered by first visiting Sheldon Brown

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  2. #2
    Ride for Life wearyourtruth's Avatar
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    anyone?
    before posting, a "noob" should always ask themselves "could this have been answered by first visiting Sheldon Brown

    -Tim-
    www.velocipedebikeproject.org

  3. #3
    Gone, but not forgotten Sheldon Brown's Avatar
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    Quote Originally Posted by wearyourtruth
    i have been researching around but i keep getting conflicting information on this... i've heard that italian dimensions are fairly interchangable with ISO (with the exception of BB of course) but i also heard that the thread angle is different, 60* vs 55* my specific concern is putting a fork with italian threads on a bike that already has an ISO headset. is that a problem? i would think it might be, and i've heard from some not to do it, but i hear from others that it'll be fine???
    It's not a problem.

    See: http://sheldonbrown.com/gloss_i-k.html#italian

    Sheldon "Don't Worry It Will Be Fine" Brown
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  4. #4
    Senior Member
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    As you noted, the thread's included angles are slightly different and it's considered a "Class B" fit. Nevertheless, they work interchangably in the real world. As Sheldon said, do it.

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