When Specialized developed the Tarmac Disc, they didn't just want it to be fast. Specialized wanted it to be fast everywhere. Long climbs, windy flats, Grand Tour stages, local fondos—Specialized built a race bike to be the most complete out there.Specialized started with their Rider-First Engineered™ frame with a perfectly-tuned ride quality for every size, added in some serious aero tech that makes it 30 seconds faster over 40 kilometers than the Tarmac SL5, and then made it 20% lighter. Nothing is lighter, faster, and better handling. This Tarmac comes with a no-fuss spec that includes Shimano Ultegra Di2 electronic shifting and quick-stopping hydraulic disc brakes, durable DT R470 Disc wheels, and Specialized's fan-favorite Power saddle.