Specialized Tarmac SL8 Pro - SRAM Force AXS (2026)

Product Details
No bicycle is as fast as the Tarmac SL8 thanks to a combination of aerodynamics, light weight, and ride quality previously thought impossible. After eight generations and over two decades of development, it’s not just the fastest Tarmac ever—it’s the fastest race bike in the world. Are your legs ready?

Aerodynamics or light weight alone don’t win races—what matters is speed. Achieving that speed requires a no-compromise blend of aerodynamics, lightness, stiffness, and compliance. Through advanced simulations using real-world data, our Ride Science Team has confirmed that the Tarmac SL8 is the fastest race bike on any course: 16.6 seconds faster over 40 km of flat terrain, 128 seconds faster on the Milan–San Remo route, and 20 seconds faster up the Tourmalet climb.

The Tarmac SL8 Pro now comes equipped with the new SRAM Force AXS groupset for lighter weight, more efficient braking, and faster, more precise shifting.

AERODYNAMICS: We’ve applied aerodynamic innovation where it matters most—creating our fastest road bike ever—yes, even more aerodynamic than the Venge. The front end has been optimized for maximum advantage, with the fork steerer positioned behind the leading edge of the head tube to dramatically reduce drag. Thanks to new UCI regulations, the SL8 features our narrowest and most aerodynamic seatpost ever, allowing turbulent air around the legs to flow more cleanly toward the rear of the bike.

LIGHTWEIGHT: To create the S-Works Tarmac SL8 and meet the UCI minimum weight limit while achieving maximum aerodynamic performance, we took lessons learned from the Aethos project. The result: a 685-gram frame—15% lighter than the Tarmac SL7 and lighter than any other World Tour bike*. We focused our weight-saving efforts on the down tube, seat tube, and rear triangle, using frame shapes so efficient under load that we could reduce material thickness and eliminate excess. *Except that one time Kasper Asgreen raced on our 585-gram Aethos frame in a Tour stage.

RIDE QUALITY: The Tarmac SL8’s stiffness-to-weight ratio is 33% better than the SL7’s, setting a new benchmark for handling precision and pedal response. It’s more rigid than ever in the power transfer and steering zones, yet 6% more compliant, filtering road chatter to keep you comfortable and agile through corners. The geometry remains the proven SL7 setup, with generous clearance for up to 32 mm tires, so you can run higher-volume rubber when needed.

BEYOND GENDER: In reality, there can be more differences between two male riders than between a male and a female rider. We design for the individual. Our philosophy is simple: don’t create differences where they don’t exist. Every rider—man or woman—can benefit from the Tarmac SL8’s performance. It’s time to move beyond labels.

The Tarmac SL8 Pro features the SRAM Force AXS groupset with power meter, Roval Rapide CL III tubeless-ready wheels, SL7 stem with Roval Rapide cockpit—race-ready right out of the box.

Technical Specifications

Frame

• Tarmac SL8 FACT 10r Carbon, Rider First Engineered™, Win Tunnel Engineered, Clean Routing, Threaded BB, 12x142mm thru-axle, flat-mount disc

Fork

• FACT 10r Carbon, 12x100mm thru-axle, flat-mount disc

Brakes

• Front: NEW SRAM Force AXS E1, hydraulic disc, 160 mm rotor

• Rear: NEW SRAM Force AXS E1, hydraulic disc, 160 mm rotor

Drivetrain

• Shifters: NEW SRAM Force AXS E1 HRD

• Front Derailleur: NEW SRAM Force AXS E1

• Rear Derailleur: NEW SRAM Force AXS E1

• Cassette: NEW SRAM Force XG-1270, 12-speed, 10-33t

• Chain: NEW SRAM Force E1

• Crankset: NEW SRAM Force E1 Power Meter, 48/35t

• Bottom Bracket: SRAM DUB BSA

Wheels & Tires

• Front Wheel: Roval Rapide CL III

• Rear Wheel: Roval Rapide CL III

• Front Tire: S-Works Turbo TLR Race, 700x28c

• Rear Tire: S-Works Turbo TLR Race, 700x28c

• Tubes: Standard 80mm PV

Cockpit

• Stem: Included in Handlebar

• Handlebar: Roval Rapide Integrated Bar/Stem

• Bar Tape: Supacaz Super Sticky Kush

• Saddle: Body Geometry Power Pro Mirror, Hollow Ti Rails

• Seatpost: S-Works Tarmac SL8 FACT Carbon, 15 mm offset

• Seat Binder: Tarmac integrated wedge

Accessories

• SWAT headset spacer kit for SL7 stem & Roval Rapide cockpit use

Weight

• 7.25 kg (15 lb, 15.7 oz) — Size 56, painted production frame as pictured. Actual weight varies by color, size, and component variation. Specifications subject to change without notice.

The manufacturer reserves the right to make changes to product information on the website at any time without prior notice, including details related to equipment, specifications, models, colors, materials, and prices. Due to supply chain issues, compatible parts may be substituted at any time without notice.

Bicycle and frame weights refer to pre-production painted products at the time of printing. The final product weight may vary.