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.
All our bikes are fully built by our Cytech qualified mechanics. To find out more, see the Built, Checked, Tuned and Tested section below to see how we'll deliver your bike.
We offer FREE DELIVERY of your bike to your home or place of work. Once you've placed your order, our Customer Care team will be in contact to offer a convenient delivery date of your choice.
We've partnered with PedalSure to offer you 30-DAYS FREE bike insurance on new bikes over £400. Visit our Cycle Insurance page to learn more and claim.
Specialized S-Works Stumpjumper SRAM AXS 29" Mountain Bike 2020
The Specialized S-Works Stumpjumper SRAM AXS 29" Mountain Bike continues to grow the legendary status of the Stumpjumper as the ultimate trail bike. To further raise the bar, Specialized has specced this model with SRAM's wireless electronic 12-speed groupset; the XX1 Eagle AXS. With instant shifting and no cables or wires to snag, its the perfect complement for a trail bike of this calibre.
With a FACT 11r carbon fibre chassis and rear end, this bike delivers superb handling, lightweight climbing efficiency and a comfortable ride all day long. Land on the soft and accommodating RockShox suspension system, with the Pike Ultimate fork delivering 150mm of travel and the Super Deluxe Ultimate rear end offering compression and rebound adjust, you can dial in the feel of the bike to suit the conditions.
- FACT 11m carbon fibre trail chassis
- Stumpjumper FSR full carbon rear end
- SRAM XX1 Eagle AXS drivetrain is the pinnacle of wireless shifting performance
- Integrated SWAT™ Door zero-hassle storage
- RockShox Pike Ultimate is the gold standard in front end suspension
- 12-speed system with a wide range of gears for any terrain
|FRAME||Specialized S-Works FACT 11m carbon chassis and rear-end, asymmetrical design, 29 Trail Geometry, SWAT™ Door integration, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 140mm of travel|
|FORK||RockShox Pike Ultimate, DebonAir, rebound adjust, independent high and low-speed compression adjust, tapered steerer, 51mm offset, 15mm Maxle® Stealth thru-axle, 15x110mm Boost™, 150mm of travel|
|REAR SHOCK||RockShox Super Deluxe Ultimate, Rx Trail Tune, 3-position low-speed compression adjust, rebound adjust, 210x50mm|
|STEM||Deity Copperhead, 31.8mm|
|HANDLEBAR||Specialized Trail, FACT Carbon, 6-degree upsweep, 8-degree backsweep, 27mm rise, 780mm, 31.8mm|
|FRONT BRAKE||SRAM Code RSC, 4-piston caliper, hydraulic disc, 200mm|
|REAR BRAKE||SRAM Code RSC, 4-piston caliper, hydraulic disc, 200mm|
|REAR DERAILLEUR||SRAM XX1 Eagle AXS, 12-speed|
|SHIFT LEVERS||SRAM XX1 Eagle AXS, trigger, 12-speed|
|CASSETTE||SRAM XG-1299 Eagle, 10-50t|
|CRANKSET||SRAM X01 Eagle, DUB, 170mm, 30T|
|FRONT WHEEL||Roval Traverse SL hub with sealed cartridge bearings, 15mm thru-axle, 110mm spacing | 28 DT Competition Race spokes | Roval Traverse SL 29" Hookless Carbon Rim with 30mm inner width, hand-built and 2Bliss Ready|
|REAR WHEEL||Roval Traverse SL Hub with DT Swiss Star Ratchet, 54t engagement, SRAM XD driver body, 12mm thru-axle, 148mm spacing | 28 DT Competition Race spokes | Roval Traverse SL 29" Hookless Carbon Rim with 30mm inner width, hand-built and 2Bliss Ready|
|FRONT TYRE||Specialized Butcher, GRID TRAIL casing, GRIPTON® compound, 2Bliss Ready, 29x2.6"|
|REAR TYRE||Specialized Eliminator, GRID TRAIL casing, GRIPTON® compound, 2Bliss Ready, 29x2.3"|
|SADDLE||Specialized Body Geometry Myth 155 S, Body Geometry Henge 143 M/L/XL, hollow ti rails|
|SEATPOST||RockShox Reverb AXS, 30.9mm, S|
|ACCESSORIES||Specialized Dirt pedals|
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 specified), 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.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. We do not install accessories to bikes, including mudguards.