2026 Sirrus X 4.0 Size:XXS 50mm height rims are ideal

50mm height rims are ideal for aerodynamic optimization while the 30mm high rim provides the agility needed on long adventures unhooking you from any limitations

Velo 47 Trekking

Manufacturer 10-year limited warranty

For outboard bottom brackets (sold separately) Rings 50/34

2026 Sirrus X 4.0 Size:XXS 50mm height rims are idealOffering 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