Specialized S-Works Tarmac SL8 Frameset Description:
The Specialized S-Works Tarmac SL8 Frameset is designed for speed across any ride profile. Building upon the SL7’s “one bike to rule them all” mantra, the Tarmac SL8 takes this all-around winning design and shaves weight while prioritizing aerodynamics and stiffness. The “Speed Sniffer” front design sets the headtube back away from the bike’s leading edge, allowing for a sharper, lower drag shape. Regarding its stiffness-to-weight ratio, the SL8 provides a 33% gain over the SL7, making this bike equally suitable for all-out sprints or hillclimb finishes. The SL8 is a winning formula designed to take on the most competitive races in the world.
Features:
- Aero In Everything design prioritizes aerodynamics in every element of the frame design
- The “Speed Sniffer” sets the headtube back and creates a sharper edge and lower drag shape
- Lighter than the SL7 while remaining super stiff (33% increase in stiffness-to-weight ratio)
- S-Works Tarmac SL8 FACT carbon seatpost is narrower and more aero
- 32mm tire clearance allows riders to run wider road tires
- Frame is designed to be “beyond gender” as Specialized research shows there is no need for separate bike designs for men and women
- The threaded BSA bottom bracket compatibility provides easy maintenance and is less likely to develop creaking noises
- Only compatible with Shimano Di2 and SRAM AXS groupsets
Specifications:
- Frame Material: FACT 12r Carbon (Rider First Engineered) (Win Tunnel Engineered) (Internal Cable/Hydraulic Brake Hose Routing) (Threaded/BSA BB) (12x142mm Thru-Axle) (Flat-Mount Disc)
- Fork Material: S-Works FACT 12r Carbon (12x100mm Thru-Axle) (Flat-Mount Disc) (47mm Offset Sizes: 44 – 52cm) (44mm Offset Sizes 54 – 61cm)
- Headset: Included
- Headset Size: Ceramic Speed SLT Headset Bearings (Included)
- Brake Compatibility: Disc Only (Hydraulic or Mechanical
- Brake Mounts: Flat Mount
- Rotor Compatibility: 160 Only (Front) | 140 or 160mm (Rear)
- Axle Type: Thru Axle
- Hub Spacing: 12 x 100mm (Front) | 12 x 142mm (Rear)
- Stem: –
- Stem Size: –
- Seatpost: S-Works Tarmac SL8 Carbon Seatpost (FACT Carbon) (15mm Offset) (Included)
- Seatpost Diameter: Specialized D-Shaped
- Seatpost Clamp: Tarmac Integrated Seatpost Wedge (Included)
- Bottom Bracket: Not Included
- Bottom Bracket Type: Threaded BSA (English Thread)
- Bottom Bracket Width: 68mm
- Drivetrain Compatibility: 1x and 2x Compatible (Electronic Only)
- Maximum Chainring Sizes: 55T (Outer) / 42T (Inner) (2x Drivetrains)
- Tire Clearance: 32mm
- Cable Routing: Internal
- Dropper Post Routing: No
- Water Bottle Bosses: 2 Mounting Positions (Downtube & Seattube)
- Fender/Rack Mounts: No
- Model Year: 2026
- Color: Gloss Dolomite Metallic/Directional Brush/Blue Majesty Metallic
- Weight: 1380g (56cm)
Includes:
- (1)Specialized S-Works Tarmac SL8 Frame
- (1)Specialized S-Works FACT 12r Carbon Fork
- (1) Headset (Part # S252500005)
- (1) S-Works Tarmac SL8 Carbon Seat Post (300mm Size: 44 – 52cm) (380mm Size: 54 – 61cm)
- (1) Derailleur Hanger (Installed)
- (1) Front Derailleur Mount Backing Plate (For use with 2x drivetrain)
- (1) Front Derailleur Mount Cover (For use with a 1x drivetrain)
- (2) 12mm Thru Axles (100mm Front, 142mm Rear)





















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