2025 | Tarmac SL8 | Ultegra Di2, Ultegra C50

Specialized Tarmac SL8 | Ultegra Di2, Ultegra C50

The all-new Tarmac SL8 is built to dominate every road—climbs, sprints, and long days in the saddle. With a design that shatters the boundaries between aerodynamics, weight, and ride quality, the SL8 represents the pinnacle of Specialized’s road racing innovation.

Outfitted with Shimano Ultegra Di2 12-speed electronic shifting, this bike delivers flawless gear changes with race-proven precision and reliability. Paired with Ultegra C50 carbon wheels, you get a perfect balance of aero performance and responsive handling for fast-paced road riding and aggressive climbs.

From Grand Tour stages to your local breakaway, the Tarmac SL8 is engineered for pure speed, optimized through extensive Win Tunnel development, and refined with Rider-First Engineering for tailored performance across all sizes.

Key Features:

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Frame: FACT 10r Carbon — aero-optimized, featherweight, and responsive

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Drivetrain: Shimano Ultegra Di2 12-speed — lightning-fast wireless shifting with superior ergonomics

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Wheels: Shimano Ultegra C50 — 50mm deep carbon wheels for all-around aero advantage

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Cockpit: Aerodynamic integrated bars and stem for clean aesthetics and airflow efficiency

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Geometry: Race-proven, responsive, and balanced — ready for aggressive attacks and all-day efforts