not sure if they're Chorus or Record or what. They cost me $150 in about 1993!!! Obviously single pivot, and REALLY, REALLY, REALLY, crap!! I've got 3 other pairs that I bought 2nd hand, and they are EVEN CRAPPER!!

When I change from my Dura-Ace bikes to this one, it takes me about 10km to get used to how hard I have to hit the brakes.