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.
Product Highlights
Lightweight and stiff, this unique carbon layup offers unrivalled handling and pedalling efficiency.
Hear only the sound of tyres on dirt, a ribbed chainstay protector silences your ride from chain noise.
Lightweight and durable, unique shaping and composite design allows for a virtual FlexStay pivot.
A high and low geometry FlipChip delivers 7mm of BB and half a degree of head angle adjustment.
Specialized S-Works Stumpjumper Mountain Bike
This is the new benchmark - the Specialized S-Works Stumpjumper Mountain Bike is going to change your perceptions of what a trail bike is capable of. With a boutique spec list stacked with top-tier components and an all-new frame design, it is a zero-compromise option for the most elite of cyclists. Although visually similar, this latest generation of Stumpjumper is a new beast altogether. Retaining the side-arm design, Specialized have built an incredibly versatile bike perfect for a wide range of riders.
Designed for outright speed, this latest frame features a roomy top tube and confidence-inspiring angles for a planted feel, no matter how rowdy the line. Revised suspension kinematics create a ride like no other, offering lively characteristics perfect for popping lips and pumping free-speed out of the trail. A progressive leverage curve gives the Stumpjumper a bottomless feel, using every bit of the 130mm on offer to propel you down the descents. Excellent small bump management and a specific RX Trail Tune ensure glue-like grip on loose terrain, balanced with big-hit performance for when things go awry.
Rider-First Engineered™ sizing ensures a perfect, style-specific fit. With low seat-tube heights, riders of all statures can reap the benefits of a more stable or playful ride depending on their preference. Size up for a more planted ride, size down for manoeuvrability - the choice is yours. A yoke mounted flip-chip allows for further fine-tuning, allowing you to drop the BB and slacken out the head angle by half a degree for a more aggressive ride. 29-inch wheels are the size of choice for the planets fastest riders, which sees the Stumpjumper move solely to a big-wheel specific platform for this latest generation.
It would not be an S-Works without a top of the range parts list, and it sure does deliver. The state of the art wireless SRAM XX1 Eagle AXS drivetrain provides near-telepathic performance, with easy setup and incredibly lightweight components. SRAM’s top-spec G2 ULTIMATE four-piston brakes provide incredible stopping power and a solid, direct feel. The cockpit sees carbon Specialized bars clamped by Deity’s performance-focused Copperhead stem and tacky Knuckleduster grips, bringing aftermarket performance to an off-the-shelf bike. Roval Control 240 rims are married to DT Swiss 240 Ratchet EXP hubs for near-instant engagement and rapid acceleration, and the suspension is managed by the flagship FOX Factory 34 and DPS respectively.
Highlights
- 29" 11m full-carbon chassis with asymmetrical design
- Redesigned suspension kinematics for improved on-trail performance
- Shock-mounted flip-chip for geometry adjustment
- 130mm of trail-optimised travel
- FOX FLOAT 34 Factory fork and FOX FLOAT DPS Factory rear shock with custom RX Trail Tune
- Wireless SRAM XX1 Eagle AXS 12-speed groupset with SRAM G2 ULTIMATE four-piston hydraulic brakes
- Rider-First Engineered™ sizing
- Improved SWAT™ storage space
- Roval Control 240 carbon wheelset with DT Swiss 240 Star Ratchet hubs
Technical Specification
| Frame | Specialized FACT 11m carbon chassis and rear-end, asymmetrical design, 29 Trail Geometry, SWAT™ Door integration, flip-chip Head Tube/Bottom Bracket adjustment, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 130mm of travel |
| Fork | FOX FLOAT 34 Factory, GRIP2 damper, Kashima Coating, 15x110mm, 44mm offset, 140mm of travel |
| Rear Shock | FOX FLOAT DPS Factory, Rx Trail Tune, EVOL Air sleeve, Kashima Coat, 3-position adjustment w/ Open Mode Adjustment, 190x45mm |
| Bottom Bracket | SRAM DUB, BSA 73mm, Threaded |
| Stem | Deity Copperhead, 35.0mm |
| Handlebar | Specialized Trail, FACT Carbon, 6-degree upsweep, 8-degree backsweep, 27mm rise, 780mm, 35mm |
| Grips | Deity Knuckleduster, Black |
| Front Brake | SRAM G2 ULTIMATE, four-piston caliper, hydraulic disc, 200mm |
| Rear Brake | SRAM G2 ULTIMATE, four-piston caliper, hydraulic disc, 180mm |
| Brake Levers | SRAM G2 ULTIMATE |
| Rear Derailleur | SRAM XX1 Eagle AXS |
| Shift Levers | SRAM XX1 Eagle AXS |
| Chain | SRAM XX1, 12 speed |
| Cassette | SRAM XG-1299 Eagle, 10-52t |
| Crankset | SRAM XX1 Eagle, DUB, S1 - 165mm, S2-S5 - 170mm, S6 - 175mm, 30t |
| Front Wheel | Rim - Roval Control 240, hookless carbon, 29mm inner width, hand-built, 2Bliss Ready / Hub - DT Swiss 240, sealed cartridge bearings, 15x110mm spacing, 28h |
| Rear Wheel | Rim - Roval Control 240, hookless carbon, 29mm inner width, hand-built, 2Bliss Ready / Hub - DT Swiss 240, Ratchet EXP, 36t engagement, SRAM XD driver body, 12mm thru-axle, 148mm spacing, 28h |
| Front Tyre | Specialized Butcher, GRID TRAIL casing, GRIPTON® compound, 29x2.3”, tubeless-ready, folding |
| Rear Tyre | Specialized Purgatory, GRID casing, GRIPTON® compound, 29x2.3”, tubeless-ready, folding |
| Saddle | Specialized Bridge Comp, Hollow Ti rails, 155/143mm |
| Seatpost | RockShox Reverb AXS, 30.9, 1X remote, (S1 - 100mm, S2 - 125mm, S3 - 150mm, S4-S6 - 170mm) |
| Pedals | Available to be purchased separately |
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.
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