Specialized Sirrus X 2.0 Step-Thru size:Small you have the perfect mountain

you have the perfect mountain bike to get your little Ripper out on the trail

the Rockhopper’s butted aluminum frame features hydroformed top and downtubes to keep weight low and strength high

7-speed microSHIFT gearing with disc brakes

a Shimano drivetrain with 9 speeds and a wide range of gearing so you're never pedaling too hard or too soft

Specialized Sirrus X 2.0 Step-Thru size:Small you have the perfect mountainDetails Offering 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