Thanks to Specialized's FACT carbon frame and fork and its vibration-damping Zertz inserts, you'll ride faster, further, and more comfortably than ever on the velvety-smooth Roubaix SL4 Elite Disc! You'll love how the Axis wheels spin up to speed, how the snappy, 22-speed Rival drivetrain flattens the climbs, and how the Rival hydraulic brakes handle all that elevation on the way back down. Plus, Specialized's Body Geometry saddle, CG-R carbon seat post, and excellent components invite you to add more miles to every ride.