Experience the difference that the X in Sirrus X brings. With carefully selected components designed specifically for performance in varied terrains, the Sirrus X stands as the next generation of lightweight, fast, and exceptionally comfortable bikes. Visually appealing and superior in performance, the Sirrus excels on asphalt. The lightweight carbon frame is thoughtfully equipped with performance-oriented features and boasts a comfort-focused design. Flexible frame elements allow for exceptional handling—an unconventional approach for a bike so dedicated to comfort. If you're looking to push boundaries and venture off the beaten path, the Sirrus X is ready for it. Its wide tires and large brake discs let you navigate gravel and other trails with precision and comfort. Want a journey that feels endless? The Sirrus X will not disappoint. Rider-First Engineered™: In the case of Specialized Carbon Bikes, each frame size and geometry is individually designed rather than simply "scaled down." Tube lengths, diameters, and carbon layups are tested for their optimal balance of strength, weight, and responsiveness for every size. The goal? No matter what frame size you ride, we ensure you experience the best ride quality in the world. Comfort: The foundation of the Sirrus Carbon's above-average performance lies at the heart of its frame: the flexible construction of the seat stays, seat tube, and crosslink to the down tube. Designed to provide just the right degree of flex—without sacrificing performance or efficiency—the result is top-tier maneuverability with improved comfort for your daily rides. Specialized's unique handlebar suspension, our Future Shock, prevents harsh impacts and road bumps from reaching the handlebars. The Sirrus Carbon absorbs shocks; it is flexible and fast enough to keep pace with the times. Versatile and customizable: Equipped with mounting points for racks and fenders, as well as for bags or other gear on the top tube, you can shape the Sirrus into what you need it to be. A sleek bike for your fitness rides or your stylish commuter for everyday life that carries all your essential items. The tire clearance of up to 42C even allows you to adapt your bike to the surfaces you ride most frequently.