Sirrus X 3.0 Components Descending from a long World

Descending from a long World Cup lineage

GENIE reduces the frequency and severity of bottom-outs

enabling the shoe to easily flex when walking and remain stiff and efficient when pedaling

for inventing the “Roval ThreadBed Valve”- a valve that threads directly into the rim eliminating compression nuts

The full-coverage fenders and rear wheel covers help keep you and your bike clean and debris out of your spokes

Sirrus X 3.0 Components Descending from a long WorldOffering 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