I can only help with one one your questions; i.e. the one
about the Columbus steerer tubes. My 1969 Atala - purchased
very early in the year - has the rifled Columbus steerer. So I
would suspect that they were available in 1968 at the latest.
Fred Rednor - Arlington, Virginia (USA)
> Question regarding Cinelli forks...
>
> Is there a way of determining the age of a Cinelli Supercorsa
> fork?
> All I can see so far is that around 1970, holes in the
> stiffener
> tangs on the inside of the blades appeared.
>
> Questions:
> - Did the Campagnolo dropouts change in any way between 1955
> and 1970?
> - When did the rifling on Columbus steerer tubes appear?
> - Any other potential identifying marks?
>
> The question is whether a fork is original to a frame or
> whether it
> was replaced for a newer fork at some point...
> --
> Jan Heine
> Editor
> Bicycle Quarterly
> 140 Lakeside Ave #C
> Seattle WA 98122
> http://www.bikequarterly.com
> _______________________________________________
>
__________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com