Sirrus X is your ticket to riding more, and to places you never imagined possible. Its a comfortable, capable, lets do stuff? kind of bike that will inspire you to ride more than you ever have before. With bigger, confidence inspiring tires, a slightly more upright riding position, a super intuitive one-by drivetrain, and plenty of mounts for racks and fenders its more than just a solid partner on pavement. Sirrus X is a dialed option when its time to hit some gravel. Weve also equipped every Sirrus X with next-level comfort from our scientifically tested and ergonomically engineered Shared Platform Body Geometry saddle, handgrips, and pedals. Heres to your life on two wheels. Fact 9 Carbon frame and fork brings race-proven performance and is a full 2.2lb (1kg) lighter than Sirrus X 4.0. Full tubeless ready Axis wheels with fast-rolling 38c Pathfinder tires plus Future Shock 1.5 for extreme float, lighter weight, and added comfort. Wide Range 1x12 Shimano SLX shifting delivers lightweight, high-performance gearing.