Help identifying a Campagnolo Cambio Corsa Frame
 

Hi guys,

I have just got a Cambio Corsa frame and i can't identify it.
There is a tubing stamp Vitus "A".
As you can see some censored! has filed down the teeth on the rear dropouts.

Here are some photos and thanks.

http://farm6.staticflickr.com/5514/1...474d1592_b.jpg

http://farm6.staticflickr.com/5488/1...6c7b7f49_b.jpg

http://farm4.staticflickr.com/3696/1...4cfb6061_b.jpg

http://farm4.staticflickr.com/3703/1...c66140cc_b.jpg

http://farm8.staticflickr.com/7435/1...dfd1f4a1_b.jpg

http://farm4.staticflickr.com/3669/1...134ab51b_b.jpg

http://farm4.staticflickr.com/3739/1...95b71cf3_b.jpg

http://farm6.staticflickr.com/5494/1...f969aa49_b.jpg

http://farm8.staticflickr.com/7333/1...c1070c36_b.jpg

She's a 'goer'!
http://farm4.staticflickr.com/3739/1...95b71cf3_b.jpg

Seriously, no idea. Looks French, by the shape of the pump pegs etc, but I'm sure you knew that.

In other news, there's only one 'r' in 'cambio corsa.'

Gorgeous frame.

Simple and elegant. Absolutely beautiful! I would be very pleased if you posted more pictures.

Sorry this post did nothing to answer your question...
Brent

Thanks for the name correction, i'm new to these types of bikes.
I thought it might be French due to it being Vitus but i didn't know if the French made these types of bikes.
The top part of the headset is missing and so i tried a French and English one but they didn't fit.
So perhaps Italian threading? Is Italian threading larger than French or English?

It would be nice to post photos of the frame built up but i'm stuck for which type of gearing to use on it.
Since the teeth have been filed down which type of derailleur system would be suitable?
Maybe a Super Champion osgear?

Italian threading differs from English as the inclusive angle of the thread is different, 55° vs 60° And I never remember which one is which.
The diameter is the same, 25.4 mm

A French "Cambio" bike would be unusual indeed, that frame appears quite nice, Italian frames of the period most often use a separate seat post collar clamp…
The Lugs and seat lug appear French to me.

Ok thank you for the info and i shall clean the threads and try again. I didn't want to force anything while trying the headsets.

Yes the lugs and especially the seat cluster looks French. There are many French bikes with this style of wrapping the seat stays at the top.

Also there is a cable stop braze-on near the top pump peg on the down tube.
What would this braze-on of been for if the gears were hand operated?

These darn images won't allow me to flip the frame around to see and comment.

To be fair, perhaps the owner couldn't find CC parts at some point 50 years ago and had to resort to the filing to use regular hubs? Although it makes us cringe now, I imagine these owners loved their bikes and sometimes had to do things like this to keep their bikes on the road.

I doubt it was an act of desperation, though. More likely an upgrade in performance.

Italian thread steer tubes are similar enough to English that the headset parts can interchange, so if English doesn't fit, Italian won't either. The only other widely used steer tube thread in Europe was Raleigh/Whitworth 1" x 26tpi, but I seriously doubt that's what you have. Do you have access to a thread gauge?

http://www.dansmc.com/threadgauge.jpg

More likely, the threads just need some clean-up. The best way to do this is with a thread file:

http://www.miataturbo.net/attachment...air-files2-jpg

If you're carefull, a triangular file can also work.

Yes that's totally understandable. I only wrote that as a joke.

Thank you, i don't have a thread guage or thread files.
I shall just try to clean the gunk out of the threads with a wire brush and if need be go to my lbs and use their files.

Sorry i forgot to upload them in 3D :innocent:
Tomorrow i'll upload a shot from the other side to show you.

I've just cleaned the threads and a French headset has fitted.
Also the bottom bracket is French it has a Stronglight axle, the one with the threads on the axle.
So it's a French bike!