2025 Sirrus X 1.0 Km MFPN=MR130B The Shimano Deore FC-MT510 crankset

The Shimano Deore FC-MT510 crankset is designed for 12-speed drivetrains

Save valuable floor space in your home or garage with Delta's new Heavy Duty Track Rack

For riders looking for comprehensive coverage to protect high risk areas of a Road or Gravel frame

8 mm square chain

2025 Sirrus X 1.0 Km MFPN=MR130B The Shimano Deore FC-MT510 cranksetOffering 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