The smoother, faster Roubaix SL3 features a super light and stiff FACT 10r carbon frame with our uniquely shaped, tapered head tube, In-Zertz vibration dampers and full internal cable routing—the same frame construction that won the grueling Paris-Roubaix race. The Expert features Shimano Ultegra compact drivetrain and our new DT-Axis 3.0 wheels for lower weight and higher performance.