Specialized Tarmac SL8 Expert Di2 2025

Specialized Tarmac SL8 Expert Di2: The Fastest Road Bike in the World

The Specialized Tarmac SL8 Expert Di2 is the result of eight generations of innovation and OLTRE two decades of development, establishing itself as the fastest racing bike ever made. This bicycle is not only the fastest Tarmac ever, but it sets a new standard for the entire racing bike industry. Get ready to push your limits: are your legs ready for excellence?

Designed for Speed

Aerodynamics, lightness, and ride quality are perfectly balanced in the Tarmac SL8, thanks to uncompromising design that integrates stiffness, shock absorption, and smooth handling. According to ourRide Science Team, the Tarmac SL8 is unbeatable on any terrain: 16.6 seconds faster over 40 km of flatland, 128 seconds gained on the Milano-Sanremo route, and 20 seconds saved on the Tourmalet climb.

Revolutionary Aerodynamics

The design of the Tarmac SL8 makes the most of the new UCI rules, including anarrower seatpostand a fork optimized to reduce aerodynamic drag. The fork steerer tube is positioned to offer a significant reduction in wind resistance, even surpassing the aerodynamic performance of the Specialized Venge.

Incredibly Light

Thanks to the inspiration taken from the Aethos project, the frame of the Tarmac SL8 weighs only685 grams, 15% less than the SL7 model. This result was achieved by reducing the material thickness in strategic areas, such as the down tube and the rear part of the frame, for an efficient and lightweight structure that meets the minimum UCI standards.

Unprecedented Driving Quality

The Tarmac SL8 improves the stiffness-to-weight ratio by 33% compared to its predecessor, ensuring superior handling and immediate response to rider input. With a 6% increase in comfort, it offers a smooth riding experience even on the toughest terrains. The clearance for tires up to 32 mm enhances versatility and comfort, making it ideal for every type of challenge.

Uncompromising Inclusivity

The Tarmac SL8 breaks every gender barrier, offering exceptional advantages and performance for all cyclists, regardless of their gender. Specialized's inclusive philosophy translates into a bicycle designed to meet the needs of every individual.

Premium Equipment

The Tarmac SL8 Expert Di2 is equipped with the groupsetShimano Ultegra Di2 , wheels Roval C38 tubeless ready carbon , SL7 stem and handlebar Specialized Expert Shallow Drop , ensuring high performance in every situation.

Suggestion: To immediately enjoy your new bike, consider adding the "bike assembled and adjusted by Cicli Drigani technicians" option to your cart for €59. With this service, your bike will be delivered assembled, adjusted, and ready to use. Without this option, the bike will arrive as packaged by the manufacturer and will require some technical adjustments before it can be used safely.