How good is the 2016 Specialized S-Works Tarmac? In its first season, it won two Grand Tours and a World Championship—not too shabby. By coupling its Rider-First Engineered™ design that ensures peak performance across every size frame with the legendary performance of the Shimano Ultegra Di2 speed build kit, it's no wonder that it's the bike of choice for riders like Vincenzo Nibali and Alberto Contador. If you're looking for the ultimate in complete road bike performance, look no further than the 2016 Specialized S-Works Tarmac.