Tarmac’s proven geometry and 32mm tire clearance are identical to the SL7
the reflective accents of the tire increase your visibility to motorists in low-light conditions
Whether you have a fat tire e-bike
Hydraulic discs slow things down firmly but gently
Specialized Sirrus X 3.0 Size:Large Tarmac’s proven geometry and 32mmOffering 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