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Ships within 48 hours · Estimated delivery Sep 17 - Sep 22
18 teeth in the front and 10 teeth in the back
70mm length Headset Semi-integrated
The biggest changes are at the front of the bike
Ride-Easy low-standover geometry
Nothing is faster than the Tarmac SL8 thanks to a combination of aerodynamics
Specialized Sirrus X 3.0 Step-Thru babyseat 18 teeth in the frontOffering 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
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