2018 Trek Domane SL 8 Disc is a lightweight, high-performance, endurance road bike with a top-of-the-line parts group. A carbon frame, Front and Rear IsoSpeed, a Dura-Ace/Shimano drivetrain, and Bontrager carbon wheels come together for a ride that's fast, efficient, and fully capable of taking on races, all-day adventures, and rough roads.