Specialized
Specialized Sirrus X 1.0 Hybrid Bike
Specialized Sirrus X 1.0 Hybrid Bike
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The Specialized Sirrus X 1.0 blends comfort, speed, and confident handling into one versatile bike. With wide Pathfinder 42c tires, a slightly more upright riding position, and simple 1x shifting, it’s built for pavement, dirt paths, and everything in between.
Why we love it
The Sirrus X 1.0 is one of the best “real life” bikes out there: smooth, fast enough to feel fun, stable enough to feel safe, and simple enough that you’re not constantly thinking about gears. If you want a bike that can handle Texas roads, sketchy pavement, and dirt shortcuts without drama — this is it.
Key Features
Key Features
- Lightweight A1 Alloy frame with clean internal cable routing (approx. 3.5 lb / 1.7 kg frame weight)
- Simple, intuitive 1x7 drivetrain with wide-range gearing
- Specialized Pathfinder 42c tires for fast rolling + stability on rough terrain
- Gripton rubber compound for improved traction and control
- Designed for pavement, gravel, hardpack, and city streets
Sizing
Sizing
The Sirrus X 1.0 is available in XXS, XS, S, M, L, XL.
Between sizes?
Fit and feel are personal, but here’s a good rule of thumb:
- Choose the smaller size if you want a slightly quicker, more nimble feel, or prefer a shorter reach.
- Choose the larger size if you want a slightly more stable feel, or prefer a more relaxed, upright position.
Still unsure?
Send us your height + inseam, and we’ll recommend the best size.
Technical Specifications
Technical Specifications
Frameset
Frame
Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts
Suspension
Fork
Hi-Ten steel, flat-mount disc, Plug + Play fender mounts, low rider rack mounts, quick-release
Brakes
Front Brake
Lee Chi, Mechanical Disc, 160
Rear Brake
Lee Chi, Mechanical Disc, 160
Drivetrain
Shift Levers
Shimano Altus SL-M315-7R, 7-Speed
Rear Derailleur
Shimano Acera RD-M3020, 7-Speed
Cassette
microSHIFT CS-H074, 12-40t, 7-Speed
Chain
KMC X8 w/ Missing Link™
Crankset
PROWHEEL, Alloy, 165mm
Chainrings
40T
Bottom Bracket
Square-tapered, 68mm
Wheels & Tires
Rims
700C disc brake, double-wall alloy, 22mm depth, 21mm internal width
Front Hub
Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h
Rear Hub
Alloy, 6-bolt disc, 8/9-Speed freehub, loose ball bearing, quick-release, 36h, 10x135mm
Spokes
Stainless, 14g
Front Tire
Pathfinder Sport, 700x42mm
Rear Tire
Pathfinder Sport, 700x42mm
Inner Tubes
Standard 40mm SV 700x32-50
Cockpit
Stem
Alloy, 25.4mm, 10deg.
Handlebars
Double-butted alloy, 5-degree backsweep, 25.4mm
Grip
Specialized Neutralizer, Body Geometry, locking grip
Saddle
Bridge Sport, Steel rails, 155/143mm
SeatPost
Alloy, 12mm offset, 2-bolt clamp, 27.2mm
Seat Binder
Bolt-type, 31.8mm
Accessories
Pedals
Specialized Body Geometry Fitness, platform, plastic
Product Details
Product ID
278560
Weight
Weight
Weight Size
LG
* Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice.
FAQ
FAQ
Is the Sirrus X 1.0 good for gravel?
Yes — it’s ideal for bike paths, hardpack, and light gravel. The 42c Pathfinder tires add stability and traction off pavement.
Is this a good commuter bike?
Absolutely. The Sirrus X is fast, comfortable, and versatile, and the simple 1x drivetrain is great for daily riding.
Is the Sirrus X 1.0 fast?
It’s quick and efficient on pavement, but more comfortable and stable than a road bike—perfect for real-world riding.
What’s the difference between the Sirrus and Sirrus X?
Sirrus X models run wider tires and a slightly more upright position for better comfort and mixed-terrain capability.
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