The Sirrus X 2.0 offers an unparalleled blend of comfort, efficiency, and agile handling, excelling on asphalt, gravel, and every terrain in between. SMOOTH, COMFORTABLE, AND EFFICIENT: The Sirrus X is renowned for its class-leading ride quality. Equipped with larger, reliable tires, an upright riding position, and a super intuitive single-speed drivetrain. RIDER-FIRST ENGINEERED™: At Specialized Bikes, each frame size and geometry is uniquely designed rather than just scaled down. For each size, tube lengths and diameters are meticulously tested for optimal balance between stability, weight, and responsiveness. The goal? No matter what frame size you ride, we ensure you experience the best ride quality in the world. AGILE: The lightweight build, exceptional pedaling efficiency, and steering precision combine to create a confident, almost telepathic riding performance.