The S-Works Tarmac SL8 Shimano Dura-Ace Di2 Road Bike is built to deliver the perfect combination of aerodynamics, lightweight performance, stiffness, and ride quality. After eight generations and over 20 years of innovation, Specialized has created not only the fastest Tarmac ever, but the world’s fastest road race bike. Equipped with the Shimano Dura-Ace R9200 Di2 12-speed groupset with dual-sided power meter and the new Roval Rapide CLX III tubeless-ready wheels, this S-Works model is engineered for riders who demand cutting-edge speed and precision.
Aero Innovation for Maximum Speed
With its new Speed Sniffer nose cone and aero-optimised leading edge design, the Tarmac SL8 slices through the air more efficiently than ever. Aerodynamic testing shows it is 16.6 seconds faster over 40km, 128 seconds faster at Milan–San Remo, and 20 seconds quicker on the legendary Col du Tourmalet compared to previous generations. The newly designed aero seatpost ensures smoother airflow, taking advantage of updated UCI rules for even lower drag.
Lightweight & Stiff for Race-Ready Performance
At just 685g, the S-Works Tarmac SL8 frame is 15% lighter than the Tarmac SL7, while delivering a 33% improvement in stiffness-to-weight ratio. Inspired by the Specialized Aethos, its refined carbon construction eliminates unnecessary material while preserving power transfer and climbing efficiency. This makes it the ideal choice for World Tour-level racing and high-performance endurance riding.
Ride Quality That Redefines Comfort
Thanks to Rider-First Engineering, every frame size offers the same unrivalled balance of precision handling, stiffness, and comfort. The Tarmac SL8 provides 6% more compliance compared to the SL7, absorbing rough road surfaces while maintaining razor-sharp responsiveness. With clearance for up to 32mm tyres, it delivers both race-day speed and everyday versatility.
Premium Specification - The S-Works Tarmac SL8 is fully equipped with only the best:
- Shimano Dura-Ace Di2 R9200 12-speed electronic groupset with dual-sided power meter
- Roval Rapide CLX III tubeless-ready carbon wheelset – aerodynamic, lightweight, and World Tour proven
- Roval Rapide integrated cockpit for aero efficiency and weight savings
- Integrated Apple Find My technology within the power meter for theft tracking and added peace of mind
Key Features:
- World’s fastest road race bike with unmatched aero efficiency
- Ultralight 685g frame – 15% lighter than SL7
- 33% better stiffness-to-weight for explosive power transfer
- Speed Sniffer aero nose cone and narrow seatpost for maximum drag reduction
- Shimano Dura-Ace Di2 12-speed electronic groupset with power meter
- Roval Rapide CLX III tubeless-ready wheels and Roval Rapide cockpit
- Rider-First Engineered geometry for consistent performance across all sizes
- Tyre clearance: up to 32mm
Shimano Dura-Ace Di2 is Shimano’s flagship 12-speed electronic road bike groupset, engineered for professional racing and high-performance cycling. With ultra-fast wireless shifting, superior braking control, and lightweight carbon components, Dura-Ace Di2 R9200 delivers unmatched precision, efficiency, and reliability. It’s the ultimate choice for riders seeking the pinnacle of road bike drivetrain technology.
The S-Works Tarmac SL8 with Shimano Dura-Ace Di2 is the ultimate race bike, combining aero innovation, ultralight performance, and pro-level components to give competitive cyclists the fastest and most advanced road bike ever built.