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 Fatboy Comp 686 Mountain Bike 2017
Let no terrain get the better of you with the Specialized Fatboy Comp 686 Mountain Bike 2017. Inspired by Specialized's collaboration with 686 Outdoor Apparel, this bike is designed to conquer rugged, deep-wilderness terrain.
With its ultra-durable and lightweight M4 Premium Aluminium frame and carbon fork and the revolutionary traction and dampening of the Ground Control fat tyres, this bike is ready to ride over anything from jagged rubble to slushy sand.
Housing those fat tyres are the strong and fast rolling Specialized Stout XC 90 rims. The combination of these rims and tyres ensures smooth and fast rolling no matter how choppy the trail gets.
Powering these fat tyres along is a superb SRAM 10-speed drivetrain with a Race Face Turnbine Cinch crankset. This system ensures smooth shifting over any gradient and combined with the Shimano Deore hydraulic disc brakes, stopping and acceleration is quick and snappy.
Features:
The frame features an M4 alloy construction that provides the ideal blend of efficiency and durability, while the geometry creates a roomy top tube and short chainstays for easy climbing and confident descending
A FACT carbon fibre fork provides tons of compliance and absorbs chatter, while simultaneously keeping the overall weight of the bike down
Specialized's Stout XC 90 alloy rims have been laced to Stout XC hubs to form a wheelset that's dependable, rugged, and efficient. So whether you're trail riding or ploughing through the snow, these wheels will be the perfect mix of performance and strength
26x.4.6" Ground Control tyres help soak up bumps, while also providing a game-changing level of traction, control, and floatation for better handling out in the wild
A Race Face Turbine Cinch one-by crankset features an alloy spindle for added strength and long-term durability, while also leading the way for an efficient, lightweight, and simplified drivetrain with plenty of gear range for hard drives on the flats and climbs
Image shown for representation of colour way only, specification subject to change at any time. Bicycles do not come with pedals unless otherwise specified.
Technical Specification
| FRAME | Specialized M4 Premium Aluminium, fully-butted w/ smooth welds, tapered head tube, post-mount disc dropouts, 190mm rear hub spacing, replaceable alloy derailleur hanger |
| FORK | Specialized FACT carbon, full monocoque, tapered steerer, 135mm hub spacing, open QR dropouts |
| HEADSET | 1-1/8" upper, 1-1/2" lower, threadless, Campy style, cartridge bearings |
| STEM | Specialized XC, 3D forged alloy, 4-bolt, 6-degree rise |
| HANDLEBARS | Specialized XC, butted 6061 alloy, 8-degree backsweep, 6-degree upsweep, 10mm rise, 31.8mm |
| GRIPS | Specialized Sip Grip, light lock-on, half-waffle, S/M |
| FRONT BRAKE | Shimano Deore, hydraulic disc, resin pads, Ice-Tech rotor |
| REAR BRAKE | Shimano Deore, hydraulic disc, resin pads, Ice-Tech rotor |
| BRAKE LEVERS | Shimano Deore BR-615, hydraulic, reach adjust |
| FRONT DERAILLEUR | N/A |
| REAR DERAILLEUR | SRAM X0 Type 2.1, 10-speed, long cage |
| SHIFT LEVERS | SRAM X9, 10-speed, trigger |
| CASSETTE | Custom Sunrace, wide range, 10-speed, 11-40t |
| CHAIN | KMC X10L, 10-speed, w/ reusable MissingLink |
| CRANKSET | Race Face Turbine Cinch, PF30 BB, 100mm spindle, 28T direct mount ring |
| PEDALS | Alloy, 1 pc. body, 9/16", w/ reflectors |
| FRONT WHEEL | Specialized Stout XC 90, disc, alloy, single wall, 90mm wide, sleeve joint, hookless design, 32h rim, Specialized Stout XC 135, Hi Lo disc, double-sealed cartridge bearings, 15mm thru-axle, 32h hub |
| REAR WHEEL | Specialized Stout XC 90, disc, alloy, single wall, 90mm wide, sleeve joint, hookless design, 32h rim, Specialized Stout XC 190, Hi Lo disc, alloy, sealed cartridge bearings, XD driver body, 197mm wide, 12mm thru axle, 32h hub |
| FRONT TYRE | Specialized Ground Control, 120TPI, 2Bliss Ready, folding bead, 26x4.6" |
| REAR TYRE | Specialized Ground Control, 120TPI, 2Bliss Ready, folding bead, 26x4.6" |
| SADDLE | Specialized Body Geometry Henge Comp, hollow Cr-Mo rails, 143mm |
| SEATPOST | Alloy, 2-bolt, 12.5mm offset, 30.9mm, anti-corrosion hardware |
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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