Specialized Sirrus X 4.0 Bike Size:M Turn Heads with the new

Turn Heads with the new Radar Helmet

It does this through a pairing with our Specialized Ride App for iOS or Android devices

neck gaiter to hair tie - for optimal performance and protection

The Max-Wick

speed and cadence sensor

Specialized Sirrus X 4.0 Bike Size:M Turn Heads with the newSpecs Technology FAQs Comfortable, Cabale, Confident: Sirrus X 4. 0 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 fendersits more than just a solid