Madone SLR 9 pairs the aerodynamics and ride quality of the ultimate race bike with the reliability of an full Shimano Dura-Ace Di2 electronic drivetrain. It's built with our best Madone OCLV Carbon frame, Adjustable Top Tube IsoSpeed, integrated Madone aero rim brakes, and Bontrager Aeolus 6 XXX Carbon wheels.