When it was time to design a new Tarmac, Specialized was daunted as to how they were going to improve on the previous model. Already offering exceptional low weight, supreme stiffness, and that good ol' race snappiness, what were they to do? Easy. Turn traditional design on its head and develop the new 2018 Specialized S-Works Tarmac Ultralight. Without a doubt, it's the fastest race bike you've ever ridden.