Specialized Sirrus X 2.0 Gloss Electric Green/Satin Reflective Smoke brand_wahoo fitness aluminum carbide tip studs to

aluminum carbide tip studs to provide extra bite and increased durability

Less noise and better modulation

Rear lights are important for safety

Steerer - Is the outside diameter of the fork steer tube on your bike

the SKS Topcage delivers great performance and fit for all water bottles

Specialized Sirrus X 2.0 Gloss Electric Green/Satin Reflective Smoke brand_wahoo fitness aluminum carbide tip studs toOffering an unprecedented combination of comfort, efficiency, and nimble handling, the Sirrus X excels on pavement, dirt, and any terrain in between. 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. Like all Specialized performance bikes, the geometry of each frame is uniquely crafted. This means that for every frame, each tube