2027 Specialized Sirrus X 3.0 Km Bike Gloss Metallic White Silver / Metallic Deep Marine Frost Reflective L CheckoutTitle=Shimano Tiagra ST-4700 2-Speed Left Shift/Brake Lever Model Runt Boxxer Compatibility Boxxer

Model Runt Boxxer Compatibility Boxxer 35mm

Metrics: Speed Distance Power Cadence

See KB-009*

Internal waist adjustment system

but we narrowed the rim shape down to three contenders that were then CNC machined into rims

2027 Specialized Sirrus X 3.0 Km Bike Gloss Metallic White Silver / Metallic Deep Marine Frost Reflective L CheckoutTitle=Shimano Tiagra ST-4700 2-Speed Left Shift/Brake Lever Model Runt Boxxer Compatibility BoxxerOffering 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