Sirrus 4.0 Size:XXS See remaining ascent and grade

See remaining ascent and grade when climbing to gauge your effort and view nearby climbs on the map

Whether you're riding

this taillight will run for up to 77 hours

Disc brakes are now a necessity in TTs with variable weather

Sirrus 4.0 Size:XXS See remaining ascent and gradeYou 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