Sirrus X 4.0
$899.99$1,349.99
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Ride it Risk-Free for 30 Days!
Every bike comes with our 30-Day Ride Guarantee. Take it home, ride it like you own it. If it’s not right, bring it back within 30 days & we’ll refund your purchase or help you find the right bike.
Normal wear and tear is expected—because the only way to know it’s the right ride is to ride it.
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Specialized Sirrus X 4.0: Ready for Anything, Built for More
The Specialized Sirrus X 4.0 is designed to inspire you to ride more and explore places you never thought possible. Whether you're cruising on pavement, heading down a gravel path, or navigating city streets, the Sirrus X 4.0 has everything you need to take on any adventure. With its comfortable geometry, high-performance features, and rugged design, it’s the ultimate bike for those looking for a versatile ride that’s just as capable off-road as it is on-road.
Key Benefits for Riders
Enhanced Comfort with Future Shock 1.5
Equipped with the revolutionary Future Shock 1.5, the Sirrus X 4.0 offers 20mm of compliance, providing a smooth, cushioned ride even over rough terrain. This innovative shock technology ensures maximum comfort, taking the sting out of bumps and potholes while keeping your bike handling precise and controlled.
Lightweight, Performance-Ready Build
The carbon fork and A1 SL alloy frame reduce the weight by 1.6 lbs (0.8 kg) compared to the 3.0 model, making the Sirrus X 4.0 one of the lightest hybrids in its class. The result is a responsive and efficient bike that is perfect for both city riding and off-road exploration.
Smooth, Precise Shifting
With a 1x11 SRAM NX drivetrain, the Sirrus X 4.0 provides smooth and reliable shifting, offering a wide range of gears to tackle any terrain. The one-by system ensures simplicity and ease of use, while still providing the versatility you need for long-distance rides or steep climbs.
Stability and Control with Reliable Brakes
The Tektro HD-R510 hydraulic disc brakes deliver powerful stopping power, with 160mm rotors for consistent performance in all conditions. Whether you're navigating wet streets or dirt trails, you’ll have the control and safety you need to handle any situation.
Confidence-Inspiring Tires and Grip
The Specialized Pathfinder tires, with their 42mm width, provide excellent traction and stability, ensuring a smooth ride whether you're on paved roads or gravel paths. The reflective accents on the tires also increase your visibility to motorists, keeping you safe during low-light conditions.
Why Choose the Specialized Sirrus X 4.0?
Built for adventure and designed for comfort, the Sirrus X 4.0 is a perfect choice for those who want a bike that can handle anything from commuting to weekend exploration. With its lightweight frame, advanced shock technology, and precision shifting, this bike will make every ride a memorable one.
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Frame:
Specialized A1 SL Premium Aluminum, Fitness Geometry, fully manipulated butted tubing, internal cable routing, flat-mount disc, 12x142mm thru-axle, Plug + Play rack/fender mounts Fork:
Specialized FACT 9r Carbon Monocoque, flat-mount disc, 12x100mm thru-axle, low rider mounts, Plug + Play fender mounts, Future Shock 1.5 Shifters:
SRAM NX, 11-speed Rear Derailleur:
SRAM NX, 11-speed Bottom Bracket:
Threaded BSA 68mm Cassette:
SRAM PG-1130, 11-speed, 11-42t Chain:
KMC X11, 11-speed w/ Missing Link™ Front Brake:
Tektro HD-R510, hydraulic disc, 160mm Rear Brake:
Tektro HD-R510, hydraulic disc, 160mm Front Hub:
Alloy, Center Lock disc, high-low flange, sealed cartridge bearings, 12x100mm spacing, 24H Rear Hub:
Alloy, Center Lock disc, high-low flange, sealed cartridge bearings, 12x142mm spacing, 28H Rims:
700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h Front Tire:
Pathfinder Sport, 700x38mm Rear Tire:
Pathfinder Sport, 700x38mm Handlebars:
Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm Stem:
Future Stem, Comp Seat Post:
Alloy, 2-bolt, 14mm offset, 27.2mm Saddle:
Bridge Comp, Hollow Cr-mo rails, 155/143mm Bar Tape:
Specialized Neutralizer, Body Geometry, locking grip Pedals:
Specialized Body Geometry Fitness, platform, plastic Bike Weight:
10.8kg (23 lb, 13 oz) Weight Size:
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What We Do:
Full Professional Assembly
Our certified mechanics put together every component—down to the tiniest bolt—ensuring your bike meets the highest standards of safety and performance.
Precise Tuning & Adjustment
Once built, we tune gears, adjust brakes, true the wheels, and dial in every detail to guarantee a smooth, flawless ride from day one.
Careful Repackaging
After your bike passes inspection, we carefully repackage it with easy-to-follow instructions. The result? A simple, stress-free assembly process in the comfort of your home.
Why It Matters:
By taking the time to ensure every aspect of your bike is perfect, we’re giving you more than just a product—we’re offering peace of mind. You’ll hit the road or trail knowing that your bike has been fine-tuned by professionals who care about quality as much as you do.
Processing Time & Shipping:
Since we treat each bike with personalized attention, please allow 2–3 business days for this service before your order ships. If you need expedited processing, simply reach out to us at info@peachtreebikes.com — we’ll do our best to accommodate your timeline.