The Ultegra Hollow Tech II Crankset features an optimized lightweight design that doesnt sacrifice stiffness
46 BB/Frame Interface PF30 BB Shell Width (mm) 68 Weight 125 Spindle Interface Type SRAM DUB Defined Color Black
DTs SINC ceramic ball bearing system is made from silicon nitride (Si3N4) an extremely tough and wear- and corrosion-resistant ceramic material
2017 Camber
Rear Axle Type 12mm Thru x 142mm Rear Axle Type 12mm Thru x 148mm Rear Hub Spacing (mm) 142 Rear Hub Spacing (mm) 148
2026 Sirrus X 3.0 Km MFPN=EBRRS305F4RF The Ultegra Hollow Tech IIOffering 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