S-Works Tarmac SL9 With this bike, you leave everyone else behind. The brand new S-Works Tarmac SL9 is the fastest road bike ever built. Not just because it is so light. Not just because it is so aerodynamic. Not because it handles better than any other bike on the road. But also because it delivers the shortest Time to Finish of all road bikes ever made. More than any other bike, the Tarmac SL9 converts your power into pure speed – tested on real race tracks, in real terrain, by real riders. If the goal is to be the first to cross the finish line, no other road bike gets you there faster.