Specialized Sirrus X 1.0 2026
The Sirrus X 2.0 provides the perfect combination of comfort, efficiency and agility, excelling both on tarmac and off-road.
Comfort and efficiency
With wide tyres, a semi-upright riding position and intuitive drivetrain, the Sirrus X is extremely comfortable.
Rider-first engineered
Like all Specialised high-end bikes, the geometry of each frame size has been individually designed to achieve the right balance of stiffness, weight and responsiveness. No matter what the rider's height, the riding experience will be the same.
Agile
The lightness, efficiency and precision of the Sirrus X give it almost telepathic handling.
Features
- A1 lightweight alloy frame with internal cable routing.
- Simple and intuitive 1x8 single chainring drivetrain and powerful hydraulic disc brakes.
- Smooth-rolling, capable Specialized Pathfinder 42c tyres with Gripton compound for unmatched traction.
Tech Specs
Frame
- Frame: Specialised A1 Premium Aluminium, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mount
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
- Rear brake: Lee Chi, Mechanical Disc
Transmission
- Shifters: Shimano Altus SL-M315-7R, 7-speed
- Rear derailleur: Shimano Acera, 8-speed
- Cassette: microSHIFT CS-H074, 12-40t, 7-speed
- Chain: KMC X8 w/ Missing Link™
- Crankset: Prowheel Alloy, XXS - XS: 165mm, S - M: 170mm, L - XL: 175mm
- Chainrings: Narrow Wide Steel 42T
- Bottom bracket: Square-tapered, 68mm
Wheels and tyres
- Rims: 700C disc brake, double-wall alloy, 22mm depth, 21mm internal width
- Front hub: Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h
- Spokes: Stainless, 14g
- Front tyre: Pathfinder Wirebead Fast Gravel 700X40C
- Rear tyre: Pathfinder Wirebead Fast Gravel 700X40C
- Inner tubes: Standard 40mm SV 700x32-50
- Rear hub: Alloy, 6-bolt disc, 8/9-Speed freehub, loose ball bearing, quick-release, 36h, 10x135mm
Cockpit
- Stem: 3D-forged alloy, 31.8mm, 7-degree rise
- Handlebar: Specialised, alloy, 15-degree backsweep, 46mm rise, 31.8mm
- Handlebar tape: Specialised Neutralizer, Body Geometry, locking grip
- Saddle: Bridge Sport, steel rails, 155/143mm
- Seatpost: Alloy, 12mm offset, 2-bolt clamp, 27.2mm
- Seat clamp: Bolt-type, 31.8mm
Accessories
- Pedals: Specialised, platform
Weight
- Manufacturer's weight: 11.71 kg (25 lb, 13.1 oz)
- Weight measured: LG
Manufacturer's notes: *Weights based on production painted frames as shown. Actual weights will vary based on colour, frame size and component variation. Specifications are subject to change without notice.
Sirrus X 1.0
| XXS | XS | S | M | L | XL | |
| Crank Length | 165mm | 165mm | 170mm | 170mm | 175mm | 175mm |
| Handlebar Width | 660mm | 660mm | 660mm | 660mm | 660mm | 660mm |
| Handlebar stem length | 70mm | 70mm | 80mm | 90mm | 90mm | 100mm |
| Saddle width | 155mm | 155mm | 155mm | 143mm | 143mm | 143mm |
| Seatpost length | 300mm | 300mm | 350mm | 350mm | 400mm | 400mm |
| Stack | 536mm | 555mm | 563mm | 593mm | 608mm | 633mm |
| Reach | 373mm | 388mm | 393mm | 398mm | 402mm | 414mm |
| Head Tube Length | 121mm | 139mm | 147mm | 175mm | 191mm | 217mm |
| Steering Angle | 69.5° | 70° | 70° | 71° | 71° | 71° |
| Bottom bracket height | 288mm | 288mm | 288mm | 288mm | 288mm | 288mm |
| B-B Drop | 70mm | 70mm | 70mm | 70mm | 70mm | 70mm |
| Trail | 79mm | 76mm | 76mm | 69mm | 69mm | 69mm |
| Fork Length (full) | 395mm | 395mm | 395mm | 395mm | 395mm | 395mm |
| Fork Offset / Rake | 51mm | 51mm | 51mm | 51mm | 51mm | 51mm |
| Forerunner | 606mm | 623mm | 631mm | 636mm | 645mm | 665mm |
| Chain guard length | 440mm | 440mm | 440mm | 440mm | 440mm | 440mm |
| Wheelbase | 1036mm | 1053mm | 1061mm | 1067mm | 1076mm | 1096mm |
| Virtual Horizontal Tube Length | 532mm | 552mm | 560mm | 574mm | 582mm | 602mm |
| Standover Height | 702mm | 725mm | 755mm | 785mm | 815mm | 837mm |
| Seat post length | 360mm | 395mm | 440mm | 470mm | 510mm | 530mm |
| Saddle Angle | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° |