‘“First gen” Corsa Record regular - aero levers were actually used prior on the last Colbalto brakes. No QR button. The Very First Delta calipers had a QR at the top of the caliper.
‘almost all prototype only
then the QR button was part of the lever to expand the caliper for a wheel exchange.
an additional problem with the little bugger cable plate was that it did not increase mechanical advantage very much, we at the shop exchanged these after with Suntour ACG levers that were better
and that little “mouse hole” cast in guide to show the trim back for the cable housing? Surely you are joking Valentino.
dark days they were, and I am a Campagnolo enthusiast.