Campagnolo Record Delta Brakes evolution.

Originally introduced in 1985 as part of the Campagnolo Record C (corsa) group, Record Delta brakes had experienced a continuous development with several detail revisions over their evolution.

Along general lines there where three different types: the 1984 "prototype" (1) that was limited in distribution and recalled directly after public presentation because of technical difficulties. Complete redesigned second type (2) was introduced in 1985 and produced only for a short time and ultimately replaced by the third and definitive model (3).

Pictures of the first half compare the three different main models.
Second half presents pictures of the first so-called Record Delta "prototype".