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 Stumpjumper Expert Carbon 27.5 Mountain Bike 2020
The Specialized Stumpjumper Expert Carbon 27.5 Mountain Bike continues to set the standard for high-performance trail riding capability. The Fact 11m frame is now lighter than before and by connecting all three mounting points of the rear-end and shock to the frame it's stiffer as well so you have enhanced handling and control, as well as a deceptive spriteliness when it comes to the climbs. Fox Float Performance suspension in the fork and rear shock deliver a melty trail-smoothing ride experience that helps you carry speed and with responsive carbon Roval 27.5" hoops that are stiff and light, the bike is nimble through technical terrain. At the back there's an X-Fusion dropper seatpost that gives maximum freedom of movement when the trail falls away and you need to shift weight over the back wheel.
SRAM provides the drivetrain components with their performance GX Eagle shifters, chain, cassette and rear derailleur, and the 12-speed 10-50t sprockets that are paired with a 31T chainring won't leave you short when the climbs get punchy. SRAM Code R hydraulic disc brakes with 4-piston calipers ensure that your braking performance is powerful and precise.
Features
- Carbon frame is lightweight, stiff, and incredibly capable
- Fox Float DPX2 Performance rear shock is supple and easy to adjust on the fly
- Roval Traverse Carbon wheels roll up to speed quickly and are bombproof
- SRAM Code R, 4-piston caliper, hydraulic disc
- X-Fusion Manic dropper post
Technical Specification
| FRAME | Specialized FACT 11m, full carbon chassis and rear-end, asymmetrical design, 27.5 Trail Geometry, SWAT™ Door integration, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 150mm of travel |
| FORK | Fox Float Performance, GRIP damper, 3-position micro-adjustment, tapered alloy steerer, 44mm offset, 150mm of travel |
| REAR SHOCK | Fox Float DPX2 Performance, Rx Trail Tune, EVOL Air sleeve, 3-position adjustment, 210x52.5mm |
| HANDLEBAR | Specialized Trail, 7050 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp |
| GRIPS | Specialized Deity, Knuckleduster, Black |
| STEM | Specialized Trail, forged alloy, 4-bolt, 5mm rise, 40mm |
| FRONT BRAKE | SRAM Code R, 4-piston caliper, hydraulic disc, 200mm |
| REAR BRAKE | SRAM Code R, 4-piston caliper, hydraulic disc, 180mm |
| BRAKE LEVERS | SRAM Code R |
| REAR DERAILLEUR | SRAM GX Eagle, 12-speed |
| SHIFT LEVERS | SRAM GX Eagle, trigger, 12-speed |
| CASSETTE | SRAM GX Eagle, 12-speed, 10-50t |
| CRANKSET | SRAM Descendant, Boost™, DUB, 170mm, steel 32T chainring |
| CHAIN | SRAM GX Eagle, 12-speed |
| FRONT WHEEL | Roval Traverse Carbon 29, hookless carbon, 30mm inner width, hand-built, 2Bliss Ready, 15x110mm |
| REAR WHEEL | Roval Traverse Carbon 29, hookless carbon, 30mm inner width, hand-built, 2Bliss Ready, DT Swiss 370, 3-Pawl System, SRAM XD driver body, 12mm thru-axle, 148mm spacing, 28h |
| FRONT TYRE | Specialized Butcher, GRID TRAIL casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.6" |
| REAR TYRE | Specialized Eliminator, GRID TRAIL casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.6" |
| SADDLE | Body Geometry Myth 155 S, Body Geometry Henge 143 M/L/XL, hollow cr-mo rails |
| SEATPOST | X-Fusion Manic, infinite adjustable, two-bolt head, bottom mount cable routing, remote SRL LE lever, 34.9mm, S |
| PEDALS | Specialized Dirt |
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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