extensive field and lab testing prove that Chisel has achieved the impossible—the efficiency
Length: 380mm/450mm
The Tactic earned the highest 5-Star Virginia Tech® Helmet Rating™ from the internationally renowned Virginia Polytechnic Institute and State University
Custom tuned shock features 3 unique damper settings
we’ve not only improved the pedaling performance of the Stumpjumper
Sirrus X 3.0 Size:S extensive field and lab testingOffering 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