SPECIALIZED S-WORKS TARMAC SL8 2025 FRAME KIT

Product Details

No bicycle is as fast as the Tarmac SL8 thanks to a combination of aerodynamics, lightness, 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 road bike in the world. Are your legs ready?

Aerodynamics or lightness alone do not win races: what matters is speed. To achieve this speed, it is necessary to create an uncompromising combination of aerodynamics, lightness, stiffness, and vibration absorption. Thanks to complex simulations using real-world data, our Ride Science Team has verified that the Tarmac SL8 is the fastest road bike on any route:

• 16.6 seconds faster over 40 km of flat terrain

• 128 seconds faster on the Milano-Sanremo route

• 20 seconds faster on the Tourmalet climb

AERO IN EVERYTHING
We have placed aerodynamics where it truly matters: on the leading edge, not just where it looks good. Thus, we have created our most aerodynamic road bike ever. Yes, it is more aero than the Venge. Clean air is optimized for maximum advantage thanks to the Tarmac's new nose, the Speed Sniffer. By moving the head tube back – the tube that determines the steerer tube width – the leading edge of the head tube becomes much sharper, ensuring a low-drag shape. Using the new UCI rules, the Tarmac SL8 has the narrowest and most aerodynamic seatpost we have ever made, ensuring that the dirty, moving air around the legs can flow cleaner. Does victory not taste sweet?

MINIMUM WEIGHT, MAXIMUM AERODYNAMICS
The Tarmac SL8 has applied the knowledge developed with the Aethos to be easily built to the UCI minimum weight even with a full aerodynamic setup. The team created a frame weighing a remarkable 685 grams alone – 15% lighter than the Tarmac SL7 and lighter than any other World Tour bike*. With the ability to make lightness the absolute priority in the seat tube, top tube, and rear of the bike, the lessons from the Aethos were applied. The frame shape distributes the load so effectively that additional layers of carbon for stiffness are rendered superfluous.
*Except for counting the time when Kasper Asgreen raced with our 585-gram Aethos frame during a Tour stage.

IT GOES LIKE LIGHTNING, IT HANDLES LIKE THE WIND
With enormous improvements in the stiffness-to-weight ratio – a 33% increase compared to the SL7 – the Tarmac SL8 takes the legend of handling, aggressive responsiveness, and proven geometry to the World Championships to a higher level. The bike is stiffer under pedaling, more precise at the handlebars, and combines all this with a comfortable ride quality that sets a new standard for road bike comfort. Thanks to our Rider-First Engineering, every rider, regardless of size, gets the same ride quality and unprecedented handling. In the saddle, the Tarmac SL8 offers 6% more compliance, gliding over rough roads with a smooth feel unique in the high-performance world of road bikes. The proven Tarmac geometry and the ability to mount tires up to 32 mm are identical to the SL7, ensuring easy adaptation and versatility for higher-volume tires when needed.

OLTRE GENDER
The difference between two male cyclists can be greater than that between a man and a woman. Gender alone does not provide enough data to specialize a bike, which makes the distinction between men's or women's bikes arbitrary and outdated. Every cyclist can gain the next-level advantage of the Tarmac SL8. It's time to go beyond the concept of gender.

The S-Works Tarmac SL8 frame features a 68 mm threaded bottom bracket, flat-mount disc brakes, and seamless integration — the definitive starting point for building the bike of your dreams.

Technical Specifications