The Tarmac is the ideal modern road bike. The carbon fiber frame was redesigned to be way more aero than its predecessor, but it still strikes a good balance between stiffness and responsivity. It’s also really light. This Tarmac SL6 Disc Comp is built with a Shimano Ultegra groupset and DT Swiss aluminum wheels and weighs just 17 pounds 3 ounces. It’s aero, fast, and easy to ride, and Peter Sagan won two of his three World Championships on his. If you’re not going fast on this, it’s not the bike’s fault.