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NJS Campagnolo BB compatibility question (need quick reply please)

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NJS Campagnolo BB compatibility question (need quick reply please)

Old 05-11-10, 02:11 PM
  #1  
gaucho777 
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NJS Campagnolo BB compatibility question (need quick reply please)

Can someone confirm whether my early 90s Campy Record cranks are compatible with a Campy NJS bottom bracket? I know there is a lot of debate about Campy BB spindle tapers, and from what I can tell NJS is usually designated for track parts. Is there any reason why I could not use an NJS Campy Record BB spindle with my road cranks.

The BB in question has a square taper, 111mm spindle, as shown here:
https://www.flickr.com/photos/balshmastergeneral/

My cranks (which I believe are early 90s Campy Record) are shown here:
https://i850.photobucket.com/albums/a...0/IMG_0620.jpg
https://i850.photobucket.com/albums/a...0/IMG_0621.jpg

In case it's not legible, the codes on the crank are [A2] on the left arm and [71] on the right arm.

Many thanks for your advice.
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Old 05-12-10, 12:43 AM
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Maybe it was a dumb question. Anyway, I went ahead and bought the BB assuming it's the standard Campagnolo taper.
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Old 05-12-10, 06:01 AM
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I'll guess and say all old Campy is interchangeable with all old Campy. I dont think NJS is a taper as much as it is a rating for Japanese track use.
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Old 05-12-10, 07:18 AM
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I'm only guessing based on late 80's date codes, but my guess is that 71=1991, then possibly A2 = 1992. [one year off mixes are common].

The earlier 70-80's Pista spindles were 109mm, not sure about later.

The tapers pre'94 are all the same.
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Old 05-12-10, 09:02 AM
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Thanks, miamijim & Ex Pres. Sounds like I should be okay, but I'll report back if I have any problems.
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