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  1. #1
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    Suntour Superbe Pro Bottom Bracket Size

    I have a Superbe Pro double crankset, year 1990, and I'm looking for an acceptable bottom bracket. I've found 2 different sizes, 109 and 112. I'm thinking the 109, but I don't want to guess. Also, there's NOS spindles for sale in the 109 size, any idea about what cups I could/should use?
    Thanks!

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    I'm almost sure I still have a few original Spb Pro BBs. I'll check tomorrow and let you know the spindle length.
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  3. #3
    Senior Member Bill Kapaun's Avatar
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    DOS
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    Here is a thread I started some time ago.

    http://www.bikeforums.net/showthread...gain?highlight=

    in which I conclude that pre 1987 Superbe pro used 113mm spindle, post 1987 use 109mm. I still run my cranks with Campy BB so I have never gotten around to proving my theory by marrying my 1985ish cranks with 113mm spindle.
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    Quote Originally Posted by Bill Kapaun View Post
    That chart only gives the Campy equivalent, which is half way between either of Suntours options, unfortunately.

    @DOS Thanks for the link, it didn't come up in my search. Good info.

    On another note, the 109mm spindle doesn't come with cups. I have a few Shimano and Tange cups laying around, would they work, or would I have to find Suntour specific?

    Thanks!

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    DOS
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    Quote Originally Posted by County View Post
    That chart only gives the Campy equivalent, which is half way between either of Suntours options, unfortunately.

    @DOS Thanks for the link, it didn't come up in my search. Good info.

    On another note, the 109mm spindle doesn't come with cups. I have a few Shimano and Tange cups laying around, would they work, or would I have to find Suntour specific?!
    I think as long as cups are from adjustable headset (fixed on one side, adjustable on other) and threaded same way as the shell, you should be fine. I know my campy cups would work with a suntour spindle.
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  7. #7
    Senior Member mrrabbit's Avatar
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    Sutherland's 1995 says "109" with Campy taper being the closest fit.

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    109 it is. Thanks for the help!

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    As to cup compatibility, as long as the cup thickness is close so the adjustable cup can have the lockring thread on adequately, you should be ok. I once "upgraded" a friend's 1971 Raleigh with a square taper SR crank to replace the beat-up OEM steel Stronglight cottered crank. I used the correct spindle but we couldn't find replacement cups with the Raleigh's proprietary threading so I just kept the Stronglight's cups. Worked fine.

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