Campagnolo Delta brakes were seen on a large number of pro team bikes, back in the late 1980’s and early 1990’s. The verdict was the same, no matter who you spoke to ….beautiful, but. The bit, was that they were not the best brakes to use, if you wished to stop in a hurry. When adjusted correctly, they do in fact work quite well, but still do not have the stopping power of more traditionally shaped brakes.