Specialized Tarmac SL8 Expert Bike (2026)

Specialized Tarmac SL8 Expert Ultegra Di2 2026 road bike. Manufacturer reference: 4926-3052

Specialized Tarmac SL8 Expert 2025 road bike. There's nothing faster than the Tarmac SL8. Its combination of aerodynamics, lightweight design, and ride quality makes it the most advanced racing bike ever developed. After eight generations and over two decades of innovation, the SL8 is not only the fastest Tarmac ever: it's the fastest racing bike in the world.

Speed ​​is the ultimate goal. To achieve it, you need to combine aerodynamics, lightweight design, stiffness, and comfort without compromise. Our Ride Science team has performed real-world race simulations and has proven that the Tarmac SL8 is the fastest bike on the routes that matter: 16.6 seconds faster over 40 km, 128 seconds on the Milan-San Remo, and 20 seconds on the legendary Tourmalet climb.

• 100% aerodynamic: We place aerodynamic features where they truly make a difference, not just where they look good. The new Speed ​​Sniffer optimizes clean airflow with a sharper leading edge, reducing drag. The new seatpost, the narrowest and most aerodynamic we've ever made, improves airflow around the legs. Faster than even the Venge.
• Minimal weight, maximum performance: The 685g FACT 10r frame is 15% lighter than the Tarmac SL7 and lighter than any other World Tour frame*. We applied our learnings from the Aethos to achieve efficient load-bearing shapes, eliminating unnecessary extra layers of carbon.
  
  
• Race-winning performance, luxury comfort: With a 33% improvement in stiffness-to-weight ratio compared to the SL7, the SL8 maintains the winning geometry and adds even more comfort. Rider-First Engineering ensures an excellent ride in all sizes, while the 32mm tire clearance provides versatility.
• Beyond gender: Designing bikes based on gender is a thing of the past. With the Tarmac SL8, all riders benefit, regardless of gender. It's time to move beyond labels.
• The Tarmac SL8 Expert Ultegra Di2 features a complete Shimano Ultegra Di2 groupset, Roval C38 tubeless-ready carbon wheels, an integrated SL7 stem, and a Specialized Expert Shallow Drop aluminum handlebar. High-level performance in a more accessible bike.

Technical Specifications

Frame

• Frame: Tarmac SL8 FACT 10r Carbon, Rider First Engineered™, Wind Tunnel Engineered, Clean Routing, Threaded BB, 12x142mm thru-axle, flat-mount brakes
• Fork: Tarmac SL8 FACT 10r Carbon, 12x100mm thru-axle, flat-mount brakes

Drivetrain

• Shifters: Shimano Ultegra Di2 R8170, hydraulic disc brake
• Front derailleur: Shimano Ultegra Di2 R8150, braze-on
• Rear derailleur: Shimano Ultegra Di2 R8150, 12-speed
• Crankset: Shimano Ultegra R8100, 52/36T
• Bottom bracket: Shimano BSA threaded
• Cassette: Shimano Ultegra, 12-speed, 11-30t
• Chain: Shimano XT M8100, 12-speed

Brakes

• Front: Shimano Ultegra Di2 R8170, hydraulic disc brake
• Rear: Shimano Ultegra Di2 R8170, hydraulic disc brake

Wheels and Tires

• Wheels: Roval C38 Carbon, 21mm internal width (front and rear)
• Front tire: S-Works Turbo, 700x26mm, 120 TPI, BlackBelt, folding
• Rear tire: S-Works Turbo, 700x26mm, 120 TPI, BlackBelt, folding
• Tubes: Turbo Ultralight, Presta 48 valve mm

Cockpit

• Stem: Tarmac integrated, 6°
• Handlebar: Specialized Expert Shallow Drop, aluminum, 125 mm drop x 75 mm reach
• Tape: Supacaz Super Sticky Kush
• Saddle: Body Geometry Power Expert
• Seatpost: S-Works Tarmac SL8 Carbon, FACT Carbon, 15 mm offset
• Clamp: Tarmac integrated wedge

Accessories

• SWAT: Stem spacers for use with SL7 stem and Roval Rapide cockpit

Weight

• Size 56 cm: 7.18 kg (15 lb, 13.3 oz)