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Old 04-08-06, 09:46 AM   #1
Eatadonut
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BCD of campy crank?

I've measured this 4 times now, and come up with a BCD of ~113 every time (bolt c-c of ~67). The 52t/40t on there are what came with it, not quite sure of the age, but probably about 15-20 years, I'm thinking it might be 116BCD, that's what Sheldon has listed as "Old Campagnolo (obsolete)", and the closest I can get.
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Old 04-08-06, 12:20 PM   #2
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Well, the good thing is that the chainrings appear to have life in them. The other thing to do is measure from the bolt to the crank bolt (making sure it's in the plane perpendicular to where the bottom bracket would be) and double that measurement.
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Old 04-09-06, 01:01 PM   #3
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Check out this link to figure it out, as I couldn't quite tell from your pic:

http://www.sheldonbrown.com/gloss_bo-z.html#bcd
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Old 04-09-06, 01:42 PM   #4
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yeah, that's the site I started at, and I keep coming up with 113. Weird. Maybe my ruler is wrong
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