Quidrez's floating disc with profile/system FLATWAVE Q-BLED has been studied for the most demanding riders. . ! The increased thickness of the brake track of 2.3 mm. combined with Flatwave® design for heat disposal will help you achieve the best performance. The controlled floating system Q-BLED® will ensure always perfect alignment. The Ergal 7075 spider guarantees maximum rigidity and best heat dissipation.