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 FSR Comp 650b Disc Mountain Bike 2017
The Specialized Stumpjumper FSR Comp 650b 2017 is the little-wheeled brother of the 29er version but holds the same high-end components, lightweight frame and handling-fuelled geometry that we all love with the Stumpjumper.
Don’t understand the difference between 29ers and 650bs? The battle between 29er and 650b riders has been raging on since mountain biking began, and the divide between technologies is now clearer than ever before. The 29er rolls over rocks and roots easier and covers more distance per pedal revolution, whilst the 650b is lighter and offers snappier handling.
The M5 alloy Trail Chassis with a Stumpjumper FSR specific rear end provides a beautiful blend of snappy front end handling and rear end durability, allowing you to manoeuvre around rock gardens and technical terrain. Thanks to this stronger rear end, if the worst does happen and you do strike an object or take the wrong line, you’ll be safe in the knowledge knowing that the rear end can absorb the blow.
A RockShox Revelation RL 27.5 with 150mm of travel soaks up all the bumps, roots and rocks you can sets your eyes on, without skipping a beat. The lockout and rebound adjustment allows you to fully customise your riding style, whilst the 15x110mm Maxle Lite thru-axle enhances stiffness and responsive handling in the front end, too.
SRAM Guide R hydraulic disc brakes are known for their immense braking capabilities and great heat modulation, allowing you to perform at the top of your game throughout your run.
SRAM’s GX drivetrain gives enough spin to climb technical, steep gradients and enough power to surge down the flats. This drivetrain also absorbs rock strikes with ease, ensuring that if your SRAM XG-1150 cassette or RaceFace Aeffect crankarm gets hit, there’ll be minimal damage.
Roval Traverse 650b wheels offer great compliance on the trail, without affecting any efficiency or ride quality. They stay stiff and lightweight throughout tough, technical rock gardens and soak up any inconsistencies over roots. The Specialized Butcher and Slaughter GRID combination gives total control on the trail, too, thanks to their immense grip and puncture protection.
Finished with a Specialized Command Post IRCC dropper post, you are now able to chop and change your position at a moment's notice. The dropper post provides 12 micro-height adjustments on the trail, at the flick of a button.
Features
- M5 alloy Trail Chassis with Stumpjumper FSR rear end blends durability, stiffness, and lightweight, while 135mm of travel Trail Geometry provide more than capable handling
- RockShox Revelation RL 29 fork features a 15mm Maxle Lite thru-axle and 150mm of plush travel to take on hits and bumpy terrain with more control and confidence
- Roval Traverse 650b alloy wheels provide a strong, stable platform that's built to deliver heaps of responsiveness, speed, and supreme handling
Image shown for representation of colourway only, specification subject to change at any time. Bicycles do not come with pedals unless otherwise specified.
Technical Specification
FRAME | Specialized M5 alloy, Trail Geometry, PF30 BB, internal cable routing, ManFu link, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 150mm of travel |
FORK | RockShox Revelation RL 27.5, Solo Air spring, lockout and rebound adjust, 15x110mm Maxle Lite thru-axle, 46mm offset, 150mm travel |
REAR SHOCK | RockShox Monarch RT, Rx Trail Tune, AUTOSAG, rebound and 2-position compression adjust, 197x48mm |
STEM | Specialized Trail, 3D forged alloy, 4-bolt, 6-degree rise |
HANDLEBARS | Specialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 27mm rise, 750mm width |
FRONT BRAKE | SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 200/180mm rotor |
REAR BRAKE | SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 180/160mm rotor |
BRAKE LEVERS | SRAM GX, 11-speed, trigger |
FRONT DERAILLEUR | N/A |
REAR DERAILLEUR | SRAM GX, long cage, 11-speed |
SHIFT LEVERS | SRAM GX, 11-speed, trigger |
CASSETTE | SRAM XG-1150, 11-speed, 10-42t |
CRANKSET | RaceFace Aeffect, 6000-series alloy, 24mm spindle, 52mm chainline |
FRONT WHEEL | Roval Traverse 650b, hookless alloy, 29mm inner width, 24/28h, tubeless ready |
REAR WHEEL | Roval Traverse 650b, hookless alloy, 29mm inner width, 24/28h, tubeless ready |
FRONT TYRE | Specialized Butcher, GRID casing, 650x2.3", 60TPI, Aramid folding bead, 2Bliss Ready |
REAR TYRE | Specialized Slaughter, GRID casing, 650x2.3", 60TPI, Aramid folding bead, 2Bliss Ready |
SADDLE | Specialized Body Geometry Henge Comp, hollow Cr-Mo rails, 143mm |
SEATPOST | Specialized Command Post IRcc, 12-position micro-height adjustable, alien head design, bottom mount cable routing, remote SRL lever, 30.9mm, 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 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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