Why buy your bike from Sigma Sports?
Don't hesitate to reach out to us. It's our goal to answer all of your questions and offer the best advice from our experts. We’ll be happy to answer any questions you may have. Contact us now or visit us in-store.
Save up to 47% with any one of our 11 Cycle to Work partners, and get the health benefits of a new bike in exchange for tax free salary sacrifice. To find out more about our various partners and how to apply click here.
Choose between Free Bike Delivery - to your home or place of work - or our new Premier Bike Delivery Service £99.99 and have your bike delivered "ready to ride" and set up to your measurements with seatpost and pedals adjusted on arrival by a qualified bike mechanic. Either way, our Customer Care team will be in touch to arrange a delivery date to suit you.
We've partnered with Laka to offer you 30 days free bike Insurance on your new bike purchase over £400. Click here for more info and find out how to claim.
Specialized Sirrus X 4.0 Hybrid Bike 2024
Sirrus X is your key to expanding your riding horizons, unlocking new and unexpected destinations. It's a comfortable, capable, and adventurous bike that will inspire you to explore more than ever before. Boasting larger, confidence-instilling tires, a slightly more upright riding position, an intuitive one-by drivetrain, and numerous mounts for racks and fenders, it transcends being merely a reliable pavement partner. Sirrus X is the optimal choice for venturing onto gravel paths. Each Sirrus X is equipped with next-level comfort, featuring scientifically tested and ergonomically engineered components like the Shared Platform Body Geometry saddle, handgrips, and pedals.
The Sirrus X 4.0 model incorporates the revolutionary Future Shock to mitigate the impact of bumps and potholes, ensuring a smoother ride. Future Shock 1.5 provides 20mm of compliance, offering maximum comfort and control over rough terrains. With an added Carbon Fork and an A1 SL alloy frame, the Sirrus X 4.0 is 1.6lb (.8kg) lighter than the 3.0 model, setting it apart from heavy hybrids with mountain-style suspension forks. The wide-range 1x11 SRAM NX shifting ensures precise gear changes for your extended journeys. Here's to embracing life on two wheels!
Technical Specification
| 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 |
| Stem | Future Stem, Comp |
| Tape | Specialized Neutralizer, Body Geometry, locking grip |
| Handlebars | Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm |
| Saddle | Bridge Comp, Hollow Cr-mo rails, 155/143mm |
| Seatpost | Alloy, 2-bolt, 14mm offset, 27.2mm |
| Front Brake | Tektro HD-R510, hydraulic disc, 160mm |
| Seat Binder | Bolt-type, 31.8mm |
| Rear Brake | Tektro HD-R510, hydraulic disc, 160mm |
| Shift Levers | SRAM NX, 11-speed |
| Rear Derailleur | SRAM NX, 11-speed |
| Chain | KMC X11, 11-speed w/ Missing LinkTM |
| Cassette | SRAM PG-1130, 11-speed, 11-42t |
| Crankset | Forged aluminum arms, 24mm spindle, Narrow-wide aluminum chainring 40t, chainguard |
| Chainrings | 40t, chainguard |
| Pedals | Specialized Body Geometry Fitness, platform, plastic |
| Bottom Bracket | Threaded BSA 68mm |
| Rims | 700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h |
| 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 |
| Spokes | Stainless, 14g |
| Front Tire | Pathfinder Sport, 700x38mm |
| Rear Tire | Pathfinder Sport, 700x38mm |
| Inner Tubes | 700x28/38mm, 48mm Presta valve |
| Weight | 10.8kg (23 lb, 13 oz) |
| Weight Size LG | |
Built, Checked, Tuned and Tested
All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.
All bikes collected from our shop, are built, tested and ready to ride. For hassle-free home delivery and bike set-up from a qualified mechanic use our Premier Delivery Service.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.
If you require any assistance please contact our Customer Care team.
Specialized Sirrus X 4.0 Hybrid Bike 2024 Sizing
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