Sirrus 4.0 Color:SATIN BLACK / SMOKE / BLACK REFLECTIVE AND EFFICIENT: Sirrus X provides

AND EFFICIENT: Sirrus X provides the smoothest ride in its class

Arm warmers are an essential layering piece

0 is lighter

Perfect for both biking and hiking adventures

But Turbo OS offers more than just power and range

Sirrus 4.0 Color:SATIN BLACK / SMOKE / BLACK REFLECTIVE AND EFFICIENT: Sirrus X providesYou have places to go, people to see, and fitness goals to achieve. We get itlife moves pretty fast, so it's a good thing we made Sirrus to help you with all of it. Wherever you're heading, Sirrus will take you there. Sirrus features a super light aluminum alloy and carbon fiber construction, as well as reliable MicroSHIFT components that are built to withstand years of daily abuse on the world's pavement. Powerful hydraulic disc brakes provide