Sirrus X 4.0 worldtour Includes all required hardware and

Includes all required hardware and mounting plates

Minimal Noise

A fitness saddle with a patented fluid technology that moves freely with you as you pedal for less pressure and more comfort

unlocking maximum range-to-weight

MacOS: Bluetooth enabled or pair with ANT+ dongle

Sirrus X 4.0 worldtour Includes all required hardware andOffering an unprecedented combination of comfort, efficiency, and nimble handling, the Sirrus X excels on pavement, dirt, and any terrain in between. SMOOTH; COMFORTABLE, AND EFFICIENT: Sirrus X provides the smoothest ride in its class. With bigger, confidence inspiring tires, a slightly more upright riding position, and a super intuitive one by drivetrain. RIDER FIRST ENGINEERED: Like all Specialized performance bikes, the geometry of each frame is