Fitness bike Specialized SIRRUS 4.0

The Specialized Sirrus 4.0 is designed to help you conquer your daily commute, achieve your fitness goals, and enjoy smooth rides through the city. Lightweight, reliable, and crafted for superior performance, this fitness bike is your ideal companion wherever life takes you.
Constructed with a super light Aluminum Alloy frame and a carbon fiber FACT 9 fork, the Sirrus 4.0 offers exceptional stability and strength while saving nearly 1.2 kg compared to the Sirrus 2.0 model. Its intuitive MicroSHIFT 2x10 wide-range shifting ensures precise and smooth gear changes, while powerful hydraulic disc brakes with through axle hub connections deliver consistent stopping power in any weather conditions. The upright riding position and ergonomically designed Body Geometry touchpoints enhance comfort, making longer rides effortless. Reflective graphics on the frame and tires increase your visibility for safer commutes.

Why choose the Specialized Sirrus 4.0?

✅ Super light Aluminum Alloy frame with internal cable routing for a sleek look and improved durability.
✅ Carbon FACT 9 fork for enhanced comfort and weight savings.
✅ Intuitive MicroSHIFT 2x10 wide-range shifting for smooth and precise gear changes.
✅ Lightweight two-piece crank for long-lasting performance.
✅ Powerful hydraulic disc brakes with through axle hub connections for reliable stopping power in all conditions.
✅ Ergonomically designed Body Geometry touchpoints for maximum comfort during long rides.
✅ Reflective graphics on the frame and tires for enhanced safety and visibility.

Component Summary:

Super light Aluminum Alloy frame with clean internal cable routing.
Carbon FACT 9 fork for improved comfort and reduced weight.
MicroSHIFT 2x10 drivetrain for smooth, precise gear transitions.
Lightweight two-piece crank for consistent performance.
Hydraulic disc brakes with through axle hub connections for powerful, consistent braking.
Body Geometry saddle and grips for ergonomic support.
Reflective details on the frame and tires for added safety.

Who is this model for?

The Specialized Sirrus 4.0 is perfect for fitness enthusiasts, urban commuters, and recreational cyclists seeking a versatile, high-performance bike. Whether you're commuting to work, heading out for a workout, or exploring city streets, the Sirrus 4.0 offers the performance, comfort, and reliability you need.

Choose the Specialized Sirrus 4.0 for a dependable, flexible bike that keeps you connected to your fitness goals and daily adventures.