Sirrus X 3.0 2025 Modern trail bike tread with

Modern trail bike tread with stable shoulder blocks for even more traction

as well as an even softer density

Replacement studs and stud insertion tool sold separately

Spurcycle Original bells are not just about ringing

Sirrus X 3.0 2025 Modern trail bike tread withOffering 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