SPECIALIZED S-WORKS TARMAC SL8 2025 FRAMESET
No bike is as fast as the Tarmac SL8, thanks to a combination of aerodynamics, low weight and ride quality once thought impossible. After eight generations and more than two decades of development, it isn’t just the fastest Tarmac ever: it’s the fastest race bike in the world. Are your legs ready?
Aerodynamics or low weight alone don’t win races: what counts is speed. Achieving that speed takes an uncompromising combination of aerodynamics, low weight, stiffness and compliance. Through complex simulations based on real-world data, our Ride Science Team verified that the Tarmac SL8 is the fastest race bike on any course: 16.6 seconds faster over 40 km on the flat, 128 seconds faster on the Milan–San Remo course and 20 seconds faster on the Tourmalet climb.
SPECIALIZED S-WORKS TARMAC SL8 2025 FRAMESET KEY FEATURES:
- AERODYNAMICS: We put aerodynamics where they matter most and, in the process, created our fastest road bike ever – yes, even more aerodynamic than the Venge. The front end has been optimised for maximum advantage. The fork steerer sits behind the leading edge of the head tube, significantly reducing drag. Thanks to the new UCI rules, we were able to give the SL8 the narrowest, most aerodynamic seatpost we have ever made, so that the turbulent air around the legs flows more easily towards the back of the bike.
- LIGHT WEIGHT: To create the Tarmac SL8 as the most aerodynamic bike while respecting the UCI minimum weight, we drew on what we learned with the Aethos. The team created a 685-gram frame, 15% lighter than the Tarmac SL7 and lighter than any other World Tour bike*. By saving as much weight as possible in the down tube, seat tube and rear end, we applied the lessons learned on the Aethos project. The frame shapes handle loads so efficiently that material thickness could be reduced, eliminating everything superfluous. *Except for the time Kasper Asgreen raced our 585-gram Aethos frame on a stage of the Tour.
- RIDE QUALITY: The Tarmac SL8’s stiffness-to-weight ratio is 33% better than the SL7’s. The Tarmac SL8 sets a new benchmark for handling: it is precise in the most demanding situations and responds instantly and efficiently to every pedal stroke. While the areas responsible for power transfer and steering precision are stiffer than ever, the Tarmac SL8 is more comfortable in the saddle, filtering out 6% more road vibration and letting you attack corners with a feeling of agility and balance unique among road bikes. The new Tarmac SL8 keeps the proven geometry of the SL7, with the same generous 32 mm tyre clearance, so you can run a higher-volume tyre when needed.
- BEYOND GENDER: In reality, there can be far greater differences between two male riders than between a man and a woman. We design for the individual and our philosophy is simple: don’t create differences where there are none. Every rider, man or woman, can take advantage of the Tarmac SL8. It’s time to go beyond.
The S-Works Tarmac SL8 frameset, with its 68 mm threaded bottom bracket, is the perfect starting point for building the bike of your dreams.
TECHNICAL SPECIFICATIONS
FRAME
- Frame: S-Works Tarmac SL8 FACT 12r Carbon, Rider First Engineered™, Win Tunnel Engineered, Clean Routing, Threaded BB, 12x142mm thru-axle, flat-mount disc. 685g frame.
FORK
- Fork: S-Works FACT 12r Carbon, 12x100mm thru-axle, flat-mount disc.
COCKPIT
- Seatpost: S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset.
- Seat collar: Tarmac integrated wedge.
ACCESSORIES
- Headset spacers: spacer kit for the SL7 stem and the Roval Rapide cockpit.
WEIGHT
- Weight: 1.37 kg (3 lb, 0.3 oz).
- Size weighed: 56.
SPECIALIZED S-WORKS TARMAC SL8 2025 FRAMESET
No bike is as fast as the Tarmac SL8, thanks to a combination of aerodynamics, low weight and ride quality once thought impossible. After eight generations and more than two decades of development, it isn’t just the fastest Tarmac ever: it’s the fastest race bike in the world. Are your legs ready?
Aerodynamics or low weight alone don’t win races: what counts is speed. Achieving that speed takes an uncompromising combination of aerodynamics, low weight, stiffness and compliance. Through complex simulations based on real-world data, our Ride Science Team verified that the Tarmac SL8 is the fastest race bike on any course: 16.6 seconds faster over 40 km on the flat, 128 seconds faster on the Milan–San Remo course and 20 seconds faster on the Tourmalet climb.
SPECIALIZED S-WORKS TARMAC SL8 2025 FRAMESET KEY FEATURES:
- AERODYNAMICS: We put aerodynamics where they matter most and, in the process, created our fastest road bike ever – yes, even more aerodynamic than the Venge. The front end has been optimised for maximum advantage. The fork steerer sits behind the leading edge of the head tube, significantly reducing drag. Thanks to the new UCI rules, we were able to give the SL8 the narrowest, most aerodynamic seatpost we have ever made, so that the turbulent air around the legs flows more easily towards the back of the bike.
- LIGHT WEIGHT: To create the Tarmac SL8 as the most aerodynamic bike while respecting the UCI minimum weight, we drew on what we learned with the Aethos. The team created a 685-gram frame, 15% lighter than the Tarmac SL7 and lighter than any other World Tour bike*. By saving as much weight as possible in the down tube, seat tube and rear end, we applied the lessons learned on the Aethos project. The frame shapes handle loads so efficiently that material thickness could be reduced, eliminating everything superfluous. *Except for the time Kasper Asgreen raced our 585-gram Aethos frame on a stage of the Tour.
- RIDE QUALITY: The Tarmac SL8’s stiffness-to-weight ratio is 33% better than the SL7’s. The Tarmac SL8 sets a new benchmark for handling: it is precise in the most demanding situations and responds instantly and efficiently to every pedal stroke. While the areas responsible for power transfer and steering precision are stiffer than ever, the Tarmac SL8 is more comfortable in the saddle, filtering out 6% more road vibration and letting you attack corners with a feeling of agility and balance unique among road bikes. The new Tarmac SL8 keeps the proven geometry of the SL7, with the same generous 32 mm tyre clearance, so you can run a higher-volume tyre when needed.
- BEYOND GENDER: In reality, there can be far greater differences between two male riders than between a man and a woman. We design for the individual and our philosophy is simple: don’t create differences where there are none. Every rider, man or woman, can take advantage of the Tarmac SL8. It’s time to go beyond.
The S-Works Tarmac SL8 frameset, with its 68 mm threaded bottom bracket, is the perfect starting point for building the bike of your dreams.
TECHNICAL SPECIFICATIONS
FRAME
- Frame: S-Works Tarmac SL8 FACT 12r Carbon, Rider First Engineered™, Win Tunnel Engineered, Clean Routing, Threaded BB, 12x142mm thru-axle, flat-mount disc. 685g frame.
FORK
- Fork: S-Works FACT 12r Carbon, 12x100mm thru-axle, flat-mount disc.
COCKPIT
- Seatpost: S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset.
- Seat collar: Tarmac integrated wedge.
ACCESSORIES
- Headset spacers: spacer kit for the SL7 stem and the Roval Rapide cockpit.
WEIGHT
- Weight: 1.37 kg (3 lb, 0.3 oz).
- Size weighed: 56.
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