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 ST 29" Mountain Bike 2019
There's room for tyres up to 3.0" wide, and Roval Traverse SL 29" carbon wheels are included for fast and smooth rolling over the roughest terrain. SRAM's XX1 Eagle drivetrain matches this frames performance attributes perfectly so shifting is precise, smooth and reliable across the cassette. Hydraulic SRAM Guide RSC disc brakes ensure braking is powerful and modulated no matter the conditions.
- The Stumpjumper ST's asymmetrical, FACT 11m carbon fibre construction is lightweight, stiff and ready for technical climbs and rowdy descents. Built off Specialized's 29 Trail Geometry, it's both capable and comfortable
- With SWAT™ integration in the down tube, a threaded BB, easy cable routing, and a brand new chain silencer, it's ready for anything the trail, or you, throw at it
- The FOX DPS Factory rear shock features Specialized's Rx Trail Tune, ensuring that no matter the wheel or frame size, your bike is dialled-in perfectly
- With the legendary FIT4 damper, large and lightweight stanchions, and buttery-smooth Kashima coating, the FOX 34 Factory 130mm fork is one of the best out there.
- Roval Traverse SL 29 wheels are full carbon and light stiff and strong
- Full 12-speed SRAM XX1 Eagle drivetrain
- Powerful SRAM Guide RSC hydraulic disc brakes
|FRAME||Specialized FACT 11m, full 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, 120mm of travel|
|FORK||FOX FLOAT 34 Factory, FIT4 damper, 3-position adjustment, Kashima Coating, 15x110mm Kabolt axle, 51mm offset, 130mm of travel|
|STEM||Syntace MegaForce 2, 6-degree, 31.8mm clamp|
|HANDLEBAR||Specialized Trail, FACT Carbon, 6-degree upsweep, 8-degree backsweep, 27mm rise, 780mm, 31.8mm|
|GRIPS||Specialized Sip Grip, half-waffle, S/M|
|FRONT BRAKE||SRAM Guide RSC, hydraulic disc, organic pads, Guide S4 4-piston caliper, 200mm|
|REAR BRAKE||SRAM Guide RSC, hydraulic disc, organic pads, Guide S4 4-piston caliper, 180mm|
|BRAKE LEVERS||SRAM XX1 Eagle|
|REAR DERAILLEUR||SRAM XX1 Eagle, 12-speed|
|SHIFT LEVERS||SRAM XX1 Eagle, trigger, 12-speed|
|CASSETTE||SRAM X01 Eagle, 12-speed, 10-50t|
|CHAIN||SRAM XX1 Eagle, 12-speed|
|CRANKSET||SRAM XX1 Eagle, Boost™ 148, 170mm crankarm, 24mm spindle, 30T|
|FRONT WHEEL||WH-TRAVERSE SL 29 148 XX1 OHLINS (hub|
|REAR WHEEL||WH-TRAVERSE SL 29 148 XX1 OHLINS (hub|
|FRONT TYRE||Specialized Butcher, GRID Casing, GRIPTON® compound, 2Bliss Ready, 29x2.3"|
|REAR TYRE||Specialized Purgatory, GRID casing, GRIPTON® compound, 2Bliss Ready, 29x2.3"|
|SADDLE||Specialized Body Geometry Phenom Expert, Adaptive Edge design, hollow titanium rails, carbon fibre base, 143mm|
|SEATPOST||Specialized Command Post IRcc, 16-position micro-height adjustable, two-bolt head, bottom mount cable routing, remote SRL lever, 34.9mm, S|
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.