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 27.5 Mountain Bike 2019
A name that's synonymous with shredding, the Specialized Stumpjumper Mountain Bike is a torchbearer for getting endorphins flowing and this Expert 27.5 model is no diversion from its agile, balanced trail riding heritage. Thanks to fine-tuned stiffness this bike handles as if it were an extension of the body, with the hands, feet, body and frame working as a connected system. By redistributing materials and reshaping the tubes it added stiffness in specific areas of the bike whilst still bringing down the overall weight - so it's lighter, but also handles better. Internal routing throughout keeps vulnerable cables away from grit and water, and with full internal tubing, it has never been easier to thread new cables.
The lightweight 12-speed SRAM GX Eagle Drivetrain with an expanded and optimum 10-50t cassette range is high-performing and durable, ready for any trail. Rolling on Roval Traverse Carbon 27.5 wheels with front and rear thru-axles ensures that stiffness and power transfer are delivered all the way through the setup and a dropper post lets you drop the saddle when descents get particularly rowdy. 150mm of front and rear travel from the RockShox suspension pins you to the trail, whatever the terrain, and a Flip Chip lets you customise the geometry by dropping the lower bracket and slackening off the head angle when you want a slightly lower centre of gravity.
Features
- 1x SRAM GX Eagle groupset is superlight and delivers top-line performance
- RockShox front and rear suspension with compression adjustments
- Flip Chip to customise the geometry
- Hydraulic SRAM R disc brakes
- 16-position dropper post
Technical Specification
| FRAME | Specialized FACT 11m 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 | RockShox Pike RC, DebonAir, rebound/low-speed compression adjust, tapered steerer, 46mm offset, 15mm Maxle® Stealth thru-axle, 15x110mm Boost™, 150mm of travel |
| REAR SHOCK | RockShox Deluxe RT3, Rx Trail Tune, rebound & 3-position compression adjust, 210x50mm |
| STEM | Specialized Trail, forged alloy, 4-bolt, 5mm rise |
| HANDLEBAR | Specialized Trail, 7050 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp |
| FRONT BRAKE | SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 200mm |
| REAR BRAKE | SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 180mm |
| BRAKE LEVERS | SRAM Guide R |
| FRONT DERAILLEUR | N/A |
| REAR DERAILLEUR | SRAM GX Eagle, 12-speed |
| SHIFT LEVERS | SRAM GX Eagle, trigger, 12-speed |
| CASSETTE | SRAM GX Eagle, 12-speed, 10-50t |
| CRANKSET | Truvativ Descendant, aluminium, Boost™ 148, 170mm crankarm, 24mm spindle, 32T chainring |
| CHAIN | SRAM GX Eagle, 12-speed |
| FRONT WHEEL | Roval Traverse Carbon 27.5, hookless carbon, 30mm inner width, hand-built, tubeless ready, 28h, Specialized, sealed cartridge bearings, 15x110mm spacing |
| REAR WHEEL | Roval Traverse Carbon 27.5, hookless carbon, 30mm inner width, hand-built, tubeless ready, 28h, Specialized, sealed cartridge bearings, 12x148mm thru-axle |
| FRONT TYRE | Specialized Butcher, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.6" |
| REAR TYRE | Specialized Purgatory, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.6" |
| SADDLE | Specialized Body Geometry Phenom Comp, hollow Cr-Mo rails, 143mm |
| SEATPOST | Specialized Command Post IRcc, 16-position micro-height adjustable, two-bolt head, bottom mount cable routing, remote SRL 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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