No bike 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. To achieve this speed requires an uncompromising combination of aerodynamics, light weight, stiffness, and compliance. Using complex simulations using real-world data, our Ride Science Team has verified that the Tarmac SL8 is the fastest road bike on any course: 16.6 seconds over 40 km on the flat, 128 seconds faster on the Milan-San Remo course, 20 seconds faster on the Tourmalet climb.

AERODYNAMICS: We use aerodynamics where it matters most, and in the process, we've created our fastest road bike ever—yes, even more aerodynamic than the Venge. The front end has been optimized to maximize its advantage. The fork steerer is positioned further back than the front of the frame's head tube, resulting in significantly lower aerodynamic drag. Thanks to new UCI regulations, the SL8 was able to use the narrowest and most aerodynamic seatpost we've ever made, ensuring that turbulent air in the leg area flows more easily toward the rear of the bike.

LIGHTWEIGHT: To create the Tarmac SL8 and build the most aerodynamic bike yet while meeting the UCI minimum weight requirement, we drew on what we learned from the Aethos. The team achieved a 685-gram frame, 15% lighter than the Tarmac SL7 and lighter than any other World Tour bike*. Focusing on minimizing weight in the downtube, seat tube, and tailtube, we incorporated lessons learned into the Aethos design. The frame shapes respond so efficiently to stresses and strains that we were able to reduce material thickness and eliminate unnecessary material. *With the exception of one time when Kasper Asgreen rode our 585-gram Aethos during a Tour stage.

RIDE QUALITY: The Tarmac SL8 has a 33% better stiffness-to-weight ratio than the SL7. The Tarmac SL8 sets a new benchmark for handling, precise in the most demanding situations and responding instantly and efficiently to pedal input. While the areas that support power transfer and steering precision are stiffer than ever, the Tarmac SL8 feels more comfortable in the saddle, filtering out 6% more bumps, allowing you to attack corners with a more agile and balanced feel unlike any other road bike. The new Tarmac SL8 retains the proven geometry of the SL7, with the same generous 32mm tire clearance, allowing you to run larger tires when needed.

BEYOND GENDER: In reality, there can be far more differences between two male cyclists than between a man and a woman. We design for the individual, and our philosophy is simple: Don't create differences where none exist. Every cyclist, male or female, can benefit from the advantages of the Tarmac SL8. It's time to go beyond.

The Tarmac SL8 Expert Di2 features an Ultegra Di2 groupset, C38 tubeless ready carbon wheels, an SL7 stem with a Specialized Expert Shallow drop handlebar.

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

Suspensions
Fork: FACT 10r Carbon, 12x100mm thru-axle, flat-mount disc

Brakes
Front brake: Shimano Ultegra Di2 R8170, hydraulic disc 160mm rotor

Rear brake: Shimano Ultegra Di2 R8170, hydraulic disc 140mm rotor

Transmission
Shifters: Shimano Ultegra R8170, hydraulic disc

Front derailleur: Shimano Ultegra R8150, braze-on

Rear derailleur : Shimano Ultegra Di2 R8150, 12-speed

Cassette: Shimano Ultegra, 12-speed, 11-30t

Chain: Shimano Ultegra, 12-speed

Crankset: Shimano Ultegra R8100

Gears: 52/36T

Bottom Bracket: Shimano Threaded BSA BB

Wheels & Tires
Front wheel: Roval C38, 21mm internal width carbon rim

Front tire: S-Works Turbo, folding bead, 700x26mm

Rear tire: S-Works Turbo, folding bead, 700x26mm

Rear wheel: Roval C38, 21mm internal width carbon rim

Inner tubes: Turbo Ultralight, 48mm Presta valve

Cockpit
Stem: Tarmac integrated stem, 6-degree

Handlebar: Specialized Expert Shallow Drop, alloy, 125mm drop x 75mm reach

Handlebar tape: Supacaz Super Sticky Kush

Saddle: Body Geometry Power Expert

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

Seat collar: Tarmac integrated wedge

Weight
Weight: 7.20kg (15 lb, 14 oz)

Weighted measure: 56