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Old 02-08-12, 05:50 PM   #1
County
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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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Old 02-08-12, 06:00 PM   #2
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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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Old 02-08-12, 07:16 PM   #3
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Does this help?

http://sheldonbrown.com/bbsize.html#suntour
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Old 02-08-12, 07:34 PM   #4
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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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Old 02-08-12, 08:23 PM   #5
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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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Old 02-08-12, 09:36 PM   #6
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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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Old 02-08-12, 09:53 PM   #7
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Sutherland's 1995 says "109" with Campy taper being the closest fit.

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Old 02-08-12, 10:33 PM   #8
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109 it is. Thanks for the help!
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Old 02-09-12, 09:33 AM   #9
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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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