^Is there any reason why break cables are so long on that era of bikes?
It's because they exit from the top of the levers, and on any brake or gear cable you want as smooth a curve as possible for best performance. When aero levers came along the cables could then exit from the rear of the lever and along the curve of the handlebar, and keep a smooth line that way without them looping up into the air.
It's because they exit from the top of the levers, and on any brake or gear cable you want as smooth a curve as possible for best performance. When aero levers came along the cables could then exit from the rear of the lever and along the curve of the handlebar, and keep a smooth line that way without them looping up into the air.