Specialized Sirrus X 4.0 Bike superfly 69 kg / 54

69 kg / 54

takes you to a land where historic cities

it features extremely low rolling resistance and superior cornering traction

Robust toe cap for additional toe protection

train or car

Specialized Sirrus X 4.0 Bike superfly 69 kg / 54Specs 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