Heat insulating piston design
resulting in one of the lightest handlebars available
model 3-pawl hybrid hubs description 370 ratchet LN 18t upgrade kit - steel HG 8-11 FH
0 Gloves are extremely breathable and have a segmented palm for dexterity
2025 Sirrus X 2.0 St Km Size:M Heat insulating piston designOffering 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