The 2015 Specialized Sirrus Comp Disc is a commuter/city bike with a carbon and aluminum Specialized / Fitness Geometry / Zertz frame. The frame comes in Satin Graphite or Satin Gunmetal .
It was released in 2015. Due to the frame materials, we estimate that this bike weighs around 25 pounds. The Sirrus Comp Disc is fully rigid.
Components
The Sirrus Comp Disc comes with Shimano Tiagra components, including an aluminum, forged, four-bolt Specialized Comp Multi stem, an aluminum, chromoly, integrated, sealed Campy headset and Shimano Tiagra shifters.
Drivetrain
The Sirrus Comp Disc has 10 speeds and has Shimano Tiagra rear cogs and a Shimano Tiagra derailleur.
Wheels
It comes with Specialized Espoir Sport Reflect tires (622mm x 30mm) and disc AXIS rims.