Matthew,
No Colnago expertise to offer, but here are a few suggestions.
(1) Diver's helmet: I think that's a Cinelli 305, shown here as Art. 151:
http://www.ceeway.com/
You want the older one with the 3.8mm hole that requires a ferrule to step up to the derailleur housing diam.
(2) Fork crown: that's a Cinelli crown, I think it's model MR, with holes drilled in the points. Try the model shown as C52 here:
http://www.ceeway.com/
(3) Tangs: The crown above has areas built into permit fork stiffeners to be slid in next to the fork blade. I don't think Ceeway has those (with parallel sides), but they have some similar ones that are not designed to be inserted into the crown. The others shouldn't be too difficult to find, though; I believe they were used with some other old Cinelli crowns (like model CC). Most of them that I've seen have the three circles in decreasing diam. drilled in them. Some are available with playing card motifs (scroll down on the fork crown page linked above). Not sure what is appropriate for your Colnago.
Cheers,
Kerrigan Bennett Pleasant Hill, CA USA
Archive-URL: http://search.bikelist.org/
Calling on the Colnago Cognoscenti! (Or at least those who own a pre-'72 Super):
I am still neck deep in the restoration of a '71 Super, which came to me without a fork and having had a number of braze-ons and new paint added at some point in it's 38 year history. I am restoring her as a period rider. At this point, I have removed the brake cable braze-ons and shifter bosses and filled the water bottle bosses that were added later. I REALLY need your help with the last three remaining unresolved details:
1) "Diver's Helmet". The ONE braze-on originally found on a '71 Super is the derailleur cable stop on the chainstay. Mine was removed and a new one was placed on the underside of the chainstay, as below-the-BB cable routing was also added... I am "correcting" all of this and now need to (a) locate and (b) braze-on a new one. A couple of detail pics would be GREATLY appreciated. I need to know both the style of cable stop (Campy, I believe?) and the distance from the drop-out where it was originally located. If ya happen to have a drive-train detail shot and can gimme a measurement, that'd likely get me movin' in the right direction. Also, if you know of a source (or happen to have one to spare) for said "diver's helmet", let a brother know!
2) Fork Crown. A 1971 bike had a semi-sloping "scalloped" crown with two holes drilled on either side (no club cut-out, etc.). With the help of members of this list, I have obtained a REALLY close crown. I will have to lengthen the points and drill the holes, so a number of detail pics of the crown will come in handy, as will a couple of measurements on distance between the holes, diameter, etc.
3) Fork Tangs. I know there are many variations on what was used by Ernesto & Co. at this time. Any pics and mesurements of the tangs on your bike will helpful. Or maybe even a tracing? Or better yet, just tell me your '71 doesn't have any and then I won't have to make any!
Any and all assistance in finding these last pieces of the puzzle will be tremendously appreciated. Help me, C-R Kenobe...You're my only hope!
Muchas Gracias,
Matthew Bowne
Brooklyn, New York