Specialized Tarmac SL8 Expert Ultegra Di2 Road Bike 2025

Specialized Tarmac SL8 Expert Ultegra Di2 Road Bike 2025

The Tarmac SL8 is the fastest race bike ever created, combining unprecedented aerodynamics, lightweight construction, and exceptional ride quality. After eight generations and more than two decades of innovation, it's not just the fastest Tarmac, it's the world's fastest race bike. Ready to push your limits?

AERO IN EVERYTHING: Aerodynamics are key, and the Tarmac SL8 is optimised for it in every detail. The new nose cone, called the Speed Sniffer, sharpens the leading edge by moving the steer tube back, resulting in the most aerodynamic road bike Specialized has ever made. Utilising new UCI rules, the Tarmac SL8 also features the narrowest, most aero seat post ever designed by Specialized, ensuring smoother airflow around the legs for maximum speed.

MINIMUM WEIGHT, MAXIMUM AERO: By incorporating lessons from the Aethos, the Tarmac SL8 is built to hit the UCI weight minimum with a full aero setup, boasting a frame that weighs just 685 grams, 15% lighter than the SL7. This lighter weight doesn't compromise aerodynamics, making the SL8 lighter than any bike on the World Tour. The frame design efficiently carries loads, eliminating the need for additional carbon stiffness layers.

GOES LIKE HELL, RIDES LIKE HEAVEN: With a 33% improvement in stiffness-to-weight over the SL7, the Tarmac SL8 offers next-level handling, responsiveness, and comfort. It’s stiffer at the pedals, more precise at the bars, and provides a compliant ride in the saddle, setting a new benchmark for race bike comfort. The SL8 delivers 6% more compliance, gliding over rough roads with a unique suppleness. The proven geometry and 32mm tyre clearance ensure versatility and ease of adaptation.

BEYOND GENDER: Specialized believes that gender doesn't dictate the best bike for a rider. The Tarmac SL8 is designed for all cyclists, offering the same unparalleled ride quality and performance to everyone.

The Tarmac SL8 Expert Di2 features a full Ultegra Di2 groupset, C38 carbon tubeless-ready wheelset, and an SL7 stem with Specialized Expert Shallow Drop alloy handlebars, making it an accessible, performance-packed option for serious cyclists.