Tarmac SL8 Comp

Product Overview
No road bike is faster than the Tarmac SL8, combining aerodynamics, lightweight construction, and ride quality once thought impossible. After eight generations and over two decades of development, this isn’t just the fastest Tarmac ever—it’s the fastest road bike in the world. Are your legs ready?

Aerodynamics or light weight alone don’t win races—speed does. Achieving that speed requires an uncompromising combination of aerodynamics, lightweight design, stiffness, and shock absorption. Using advanced simulations and real-world data, our Ride Science Team has confirmed that the Tarmac SL8 is the fastest road bike across all terrains: 16.6 seconds faster over 40 km of flat roads, 128 seconds faster on the Milano-Sanremo route, and 20 seconds faster on the Tourmalet climb.

The Tarmac SL8 Comp now comes equipped with the new SRAM Rival AXS groupset for reduced weight, smoother braking, and ultra-precise shifting.

Aerodynamics
We apply aerodynamics where it matters most, creating our fastest road bike ever—even more aerodynamic than the Venge. The front end is optimized for maximum efficiency. The fork steerer tube is positioned behind the front of the head tube, reducing aerodynamic drag. With new UCI regulations, we were able to design the narrowest, most aerodynamic seatpost ever, allowing turbulent air around the legs to flow more smoothly toward the rear of the bike.

Lightweight Design
Inspired by the lessons learned with the Aethos, the SL8 frame weighs just 685 grams, 15% lighter than the Tarmac SL7 and lighter than any other WorldTour bike*. The frame’s top tube, down tube, and rear triangle are designed to maximize stiffness while minimizing material, removing any unnecessary weight.

Ride Quality
The SL8 improves the stiffness-to-weight ratio by 33% over the SL7. It sets a new benchmark for handling: precise under pressure, responsive to every pedal stroke, and agile through corners. While the bike is stiffer where power transfer and handling matter, it also filters 6% more road vibrations, delivering comfort and control on every ride. The SL8 retains the proven SL7 geometry and generous 32 mm tire clearance for maximum versatility.

Inclusive Design
We design for the individual, not the gender. Every rider, regardless of gender, can enjoy the full performance benefits of the Tarmac SL8.

Components
The Tarmac SL8 Comp pairs the SRAM Rival AXS drivetrain with DT Swiss R470 wheels and a Specialized Shallow Drop alloy handlebar with integrated Tarmac stem, delivering exceptional performance at an excellent value.

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: SRAM Rival AXS E1 hydraulic disc, 160mm rotors front & rear

• Shifters: SRAM Rival AXS E1 HRD

• Derailleurs: SRAM Rival AXS E1 front & rear

• Cassette: SRAM Rival XG-1250, 12-speed, 10–36t

• Crankset: SRAM Rival E1, 48/35t

• Bottom Bracket: SRAM DUB BSA

• Wheels: DT Swiss R470, 20mm internal width, tubeless ready, 24h

• Tires: S-Works Turbo, 120 TPI, 700x26mm, BlackBelt protection

• Handlebar & Stem: Specialized Shallow Drop alloy, integrated Tarmac stem

• Seatpost: OC031-1 SP TLA, 15mm offset, AM rail

• Saddle: Body Geometry Power Sport, steel rails

• Weight: 7.77 kg (56 cm frame, as painted; actual weight varies by size, color, and components)

*Weights are based on painted production frames as shown. 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.