Martin,
Campy vertical dropouts were popular on a lot of British TT bikes built in the late 60s and early 70s. They allowed the use of really short chainstays. Some of those bikes even had bent seat tubes to shorten the wheelbase further.
The stamped steel Campy 1060 vertical dropouts were last listed in the 1968 Campy catalog but were still available until the mid 70s. By that time other companies were selling forged vertical dropouts.
The 1060 rear dropouts were 4mm thick versus 6mm+ thick 1010 horizontal dropouts. Some builders brazed U shaped washers to the inside or outside of these vertical rear dropout to make them the same width as the horizontals. Probably for easy wheel swapping without having to adjust the QR.
The wide flat space on the 1060 rear dropouts was a great area for drillium.
Good point about broken spokes.
Chas. Colerich
Oakland, CA USA
> Versatilty, and if you break a spoke you can move the wheel so it
> doesn't rub the frame
> I think verticals took over when the craze for really short bikes
> started. I've got a 74 Shimano catalogue where verticals are called
> touring ends, horizontals are road.
Marten Gerritsen
Kiel Windeweer
Netherlands