These steel-center hubs were produced for Campagnolo by FB (Fratelli Brivio). The centers are made of chrome-plated steel and have pressed-on and threaded-on aluminum flanges. Note the early - second generation - quick release skewers with frankenstein bolts. These flip-flop type hubs were made with the option of using them on the road or the track. These hubs have the later, larger version logos with fewer feathers visible in the wings.