Originally Posted by
Wino Ryder
Campy introduced the aero-brakes around 1990, which concealed the brake housings from the lever body and ran them along the bars to the calipers.
Aero campagnolo brakes (with the optional aero or traditional) were available as early as 1984 with the first C-record group. Dia-compe and shimano also used aero design prior 1990. But in anycase, I don't think aerodynamics had much to do with the swing back to sidepulls in the early 1970s.
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1 Super Record bike, 1 Nuovo Record bike, 1 Pista, 1 Road, 1 Cyclocross/Allrounder, 1 MTB, 1 Touring, 1 Fixed gear