2026 Specialized Tarmac SL8 Pro - Shimano Ultegra Di2 Size:61 Compatible with a splined driver

Compatible with a splined driver body Integral part of the SRAM Eagle drivetrain Ecosystem Wide 11-50t gear range with optimized gear steps across entire range

a rugged casing

Hub Spacing - 12X100mm/12X142mm

protecting it from sharp rocks

2026 Specialized Tarmac SL8 Pro - Shimano Ultegra Di2 Size:61 Compatible with a splined driverDetails Nothing is faster than the Tarmac SL8 thanks to a combination of aerodynamics, lightweight, and ride quality previously thought impossible. After eight generations and over two decades of development, its more than the fastest Tarmac ever. Its the worlds fastest race bikemade even faster with the aero paradigm shifting performance of the all new Roval Rapide CL III wheels. Aerodynamics or lightweight alone dont win races speed is what matters.