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. It's purpose-built to be a true all-around race bike. 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 intended.