I think the round slotted one are lower end Grand Sport if my old brain is still working right and the Ring one is NR/SR. Steven Willis The Bike Stand 1778 East Second Street Scotch Plains NJ 07076 908-322-3330 http://www.thebikestand.com
> Hoping this isn´t too much of a daft question, here we go.
>
> I´ve got two sorts of Campag gear levers in my box, they can be told
> apart if one looks at the bolts holding the actual levers to the
> bands/braze on studs. One sort has a standard round slotted head, the
> other one has an oval wire protruding from the bolt head with the help
> of which one can tension the friction disc.
>
> What´s the reason for the two systems? Age? Different models?
>
> Thanks for helping me once again, but I would like to get it right - this
> is the finishing touch for my 1957/58 Johnny Berry I think. I did
> look in Chuck Schmidt´s timeline and elsewhere, to no avail.
>
> Regards, Toni Theilmeier, Belm, Germany.