When only pure, absolute performance is demanded, the best riders in the world choose the S-Works Tarmac. That's because it features an impeccable S-Works FACT 11r carbon fibre construction that's unbelievably light, stiff, and reactive. In other words, it's purpose-built to be a true all-'round race bike, which is no accident. In fact, it comes as a result of Rider-First Engineered™ design that applies specificity to every tube size and carbon layup for every frame size. This creates the optimal balance of rigidity, weight, and responsiveness, so every frame, regardless of size, performs just as Specialized intended.