Sirrus X 4.0 Elite The Alpinist CL II utilizes

The Alpinist CL II utilizes the same rim as the Alpinist CLX II

Stealth non-marking Phantom outsole

Exterior shell fabric is engineered to allow this jacket to breathe even better and move moisture from the insulation to the exterior to dry

yet highly durable multi-material design

Sirrus X 4.0 Elite The Alpinist CL II utilizesSirrus 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 fendersits more than just a solid partner on pavement. Sirrus X is a dialed option when its time to