With its race-optimised, FACT carbon frame, efficient handling, and increased 19% stiffness-to-weight ratio over the previous Tour de France-winning version, the Specialized S-Works Tarmac SL4 Di2 2014 Road Bike has plenty of Pro-Tour proven speed up its sleeve. Simply put: nothing is lighter and stiffer. That's why it's the go-to choice of the pro peloton. Ride it hard, ride it fast, just wind yourself up and go.
SL4 FACT 11r carbon frame has our highest stiffness-to-weight ratio ever, with tapered headtube, OSBB, internal cable routing, and FACT full monocoque carbon fork with tapered steerer for race day performance. Ultra-light Roval Rapide CLX 40 carbon clincher wheelset with CeramicSpeed bearings, paired with new S-Works Turbo 24c 220TPI tyre for a fast and light setup. Extremely low rolling resistance and superior cornering traction lets you climb easily, descend faster, and corner harder. Specialized S-Works FACT carbon crankset is OSBB, with removable carbon spider, and CeramicSpeed ceramic bearings for maximum power transfer. Shimano Dura-Ace Di2 electronic drivetrain offers the same precise performance and light weight as their famed mechanical systems, but with the convenience of simple, intuitive shift levers.