With its race-optimised, FACT carbon frame, efficient handling & increased 19% stiffness-to-weight ratio over the previous Tour de France winning version, the Specialized Tarmac SL4 has plenty of Pro-Tour proven speed up its sleeve. Simply put: nothing is lighter & stiffer. That's why it's the go-to choice of the pro peloton. Ride it hard, ride it fast, just wind yourself up & go. 2014 Tarmac SL4 Highlights Specialized SL4 FACT 9r carbon frame with uniquely shaped, tapered headtube & OSBB: now even stiffer & lighter for pure, unbridled speed & power; paired with a tapered, full-monocoque FACT carbon fork for ultimate steering precision Specialized Espoir 25c tyres with Black Belt puncture protection allow for a smooth, fast, & confident ride FSA Gossamer BB30 with race-compact gearing delivers excellent power transfer & consistent shifting Never miss a critical shift with new Shimano Sora STI shifters