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Specialized Tarmac SL8 Pro Ultegra Di2 2026 review: Comfort
Surprisingly, the Tarmac SL8 Pro proves to be more comfortable than its S-Works older sister. This is due to the different density of the FACT 10r carbon, which possesses a superior capacity for damping micro-vibrations. While not a pure endurance bike, it allows for long distances (over 5 hours in the saddle) with reduced muscle fatigue compared to more extreme and nervous frames.