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S-Works Tarmac SL8 Dura-Ace Di2 Bicycle 2025
Description
The S-Works Tarmac SL8 sets a new benchmark in speed, achieved through an unprecedented integration of aerodynamics, lightweight design, and ride quality. Over eight generations and two decades of refinement, it has evolved into more than just the fastest Tarmac—it is now the fastest race bike in the world. Are your legs ready to experience it?
Speed in racing demands more than just aerodynamic efficiency or lightweight construction; it requires an uncompromising blend of both, along with stiffness and compliance. The Specialized Ride Science team has validated through real-world simulations that the Tarmac SL8 outperforms all rivals on key courses, achieving a remarkable 16.6 seconds faster over 40km, 128 seconds quicker in Milan San Remo, and 20 seconds swifter on the Tourmalet climb.
The S-Works Tarmac SL8 exemplifies aerodynamic excellence with groundbreaking innovations such as the Speed Sniffer nose cone and advanced steer tube adjustments, pushing drag to its absolute minimum. It stands as the most aerodynamic road bike ever, even surpassing the renowned Venge. Adhering to the latest UCI regulations, the SL8 features the narrowest seat post we've ever designed, optimizing airflow around the rider to deliver unparalleled performance.
Incorporating insights from the Aethos, the S-Works Tarmac SL8 achieves a remarkable 685-gram frame—15% lighter than the SL7 and the lightest on the World Tour*, achieved through a focus on reducing weight in critical areas like the down tube and seat tube while eliminating excess carbon layers. This dedication to minimal weight complements a 33% improvement in stiffness-to-weight ratio over the SL7, enhancing handling and responsiveness.
The bike’s World Championship-proven geometry offers exceptional performance across various conditions, while Rider-First Engineering ensures a compliant ride that adapts to different terrain. Moving beyond outdated gender-specific designs, the Tarmac SL8 is engineered for superior performance for all riders, transcending arbitrary distinctions to deliver unrivaled advantages.
The S-Works Tarmac SL8 is equipped with top-tier components, including the Shimano Dura-Ace 9200 series Di2 groupset with a dual-sided power meter and the Roval Rapide CLX II tubeless-ready wheelset, perfectly complementing the world’s fastest frame. Every S-Works Tarmac SL8 also features a Roval Rapide cockpit, designed to save weight and enhance aerodynamic efficiency for the ultimate race experience.
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- Frame: 2025 S-Works Tarmac SL8 FACT 12r Carbon, Rider First Engineered™, Win Tunnel Engineered, Clean Routing, Threaded BB, 12x142mm thru-axle, flat-mount disc
- Fork: S-Works FACT 12r Carbon, 12x100mm thru-axle, flat-mount disc
- Cockpit: Saddle:Body Geometry S-Works Power with Mirror, carbon fiber rails, carbon fiber base, Handlebars: Roval Rapide Cockpit, Integrated Bar/Stem, Seatpost:S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset, Bar Tape: Supacaz Super Sticky Kush, Seat Binder: Tarmac integrated wedge
- Wheels: Front Wheel Roval Rapide CLX II, Tubeless, 21mm internal width carbon rim, 51mm depth, Win Tunnel Engineered, Roval AFD hub, 18h, DT Swiss Aerolite spokes
- Rear Wheel Roval Rapide CLX II, Tubeless, 21mm internal width carbon rim, 60mm depth, Win Tunnel Engineered, Roval AFD hub, 24h, DT Swiss Aerolite spokes
- Tires: S-Works Turbo Rapidair 2BR, 700x26mm
- Groupset: Shimano Dura-Ace 9200 Di2 12-Speed
- Crankset: Shimano Dura-Ace R9200 (52T-36T), HollowTech II, 12-speed with 4iiii Precision 3+ Pro dual-sided powermeter, Rear Derailleur: Shimano Dura-Ace R9250, 12-speed, Front Derailleur: Dura-Ace9250, BB: Shimano Dura-Ace, BB-R9200, Cassette: Dura-Ace 12-Speed (11-30T), Chain: Dura-Ace 12-Speed, Shift Levers and Brakes: Shimano Dura-Ace R9270, hydraulic disc
- Weight:6.62 kg (14 lb, 9.5 oz)- size 56cm
- Multiple Colors available, sizes 44cm-61cm
Geometry
Size | 44cm | 49cm | 52cm | 54cm | 56cm | 58cm | 59cm | 61cm |
---|---|---|---|---|---|---|---|---|
Wheel Size | 700 | 700 | 700 | 700 | 700 | 700 | 700 | 700 |
Stack | 491mm | 504mm | 517mm | 534mm | 555mm | 581mm | 568mm | 602mm |
Reach | 369mm | 378mm | 383mm | 387mm | 398mm | 405mm | 413mm | 411mm |
Head Angle | 70.5° | 71.75° | 72.5° | 73° | 73.5° | 73.5° | 73° | 73° |
Seat Angle | 75.5° | 75.5° | 74° | 74° | 73.5° | 73.5° | 73.5° | 73° |
Top Tube Length | 496mm | 509mm | 531mm | 541mm | 563mm | 577mm | 587mm | 595mm |
Head Tube Length | 93mm | 102mm | 113mm | 131mm | 151mm | 178mm | 163mm | 198mm |
Standover | 723mm | 735mm | 746mm | 768mm | 786mm | 808mm | 809mm | 834mm |
Fork Trail | 71mm | 63mm | 58mm | 58mm | 55mm | 55mm | 55mm | 52mm |
Fork Offset | 47mm | 47mm | 47mm | 44mm | 44mm | 44mm | 44mm | 44mm |
Bottom Bracket Drop | 74mm | 74mm | 74mm | 72mm | 72mm | 72mm | 72mm | 72mm |
Front Center | 572mm | 574mm | 577mm | 579mm | 592mm | 606mm | 610mm | 613mm |
Wheelbase | 970mm | 973mm | 975mm | 978mm | 991mm | 1006mm | 1009mm | 1013mm |
Chainstay Length | 410mm | 410mm | 410mm | 410mm | 410mm | 410mm | 410mm | 410mm |