The Tarmac SL8 Expert from Specialized is the fastest road bike in its class, combining aerodynamics, lightweight design, and superior ride quality. After eight generations and over two decades of development, the Tarmac SL8 is the fastest road bike in history. Aerodynamics and lightweight design alone don't win races; speed does. To achieve this speed, a compromise-free combination of aerodynamics, lightweight design, rigidity, and comfort is necessary. Our Ride Science team, through real-race data simulations, knows that the Tarmac SL8 is the fastest road bike ever made in crucial races such as 16.6 seconds faster in 40 km, 128 seconds faster in Milan-San Remo, and 20 seconds faster in the legendary Tourmalet climb. The Tarmac SL8 Expert comes with a complete SRAM Rival eTap AXS groupset, including a power meter.