New HYPR-X Compound HYPR-X is the culmination of Maxxis’ rubber compound development
Reflectivity: Various points of high reflectivity
and were developed specifically to overcome the issues inherent in traditional MTB shim designs
The four-row flat seams nestle against the skin without rubbing
Leveraging our countless hours of Win Tunnel testing
Specialized Sirrus X 2.0 - Gloss Laruel Green Metallic / Sandstone Metallic Frost Reflective Cockpit Spare Parts New HYPR-X Compound HYPR-X isOffering 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