Specialized S-Works Demo 8 27.5" 2017 Downhill Mountain Bike

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We offer Free UK Mainland Delivery on all orders over £20. Products shipped to outlying UK regions are excluded from free shipping.

Standard delivery is normally 2 - 5 working days.

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Relentless, fast, aggressive—no matter how you describe it, downhill racing is demanding. Starting with the bike, you're inserting control into a borderline uncontrollable situation wherever you can. 


But when it comes to harnessing gravity's pull, while also maintaining confident handling, it simply doesn't get any better than the S-Work Demo 8. It's constructed from our finest carbon fibre, FACT 11m, for unparalleled stiffness and strength. At the front, you'll find 200mm of travel coming through a custom-tuned RockShox BoXXer Team 650b fork, and at the rear, you get 200mm of travel via our game changing Öhlins rear shock. The build is also dialed-in, sparing absolutely no expense in giving the utmost in lightweight, durable performance. This means that you get powerful SRAM Guide RS brakes that control Code calipers and 200/180mm Centerline rotors, a precise one-by X01 DH seven-speed drivetrain, strong & stiff Roval 650b wheels, and our legendary Butcher & Slaughter DH tyres for the ultimate in traction and control. Add it all up, and you get everything you need to send it down the mountain with more speed than you ever thought possible.


  • The frame features a full FACT 11m carbon fiber construction for low weight and heightened levels of strength and stiffness, which is amplified by its asymmetrical frame design that still leaves plenty of access. This has also been paired with our proven S3 Geometry that increases maneuverability and responsiveness, while the 200mm of travel at the rear makes the bike capable of taking on the biggest of hits in stride.
  • RockShox BoXXer Team 650b fork is nothing short of legendary. With 200mm of travel, a Charger Damper for maximum efficiency, and Power Buldge reinforced lower legs that allow oversized bushings for incredible stiffness, it's easy to see why it's such a fan favorite for gravity fiends.
  • Custom SRAM Guide RS brakes w/ Code calipers give powerful, precise, and highly adjustable braking. Their based on a four-piston caliper design that puts out smooth, dependable stopping power, while the Reach Adjust feature allows you to customize the position for easy, one-finger lever pulls. And with SRAM's SwingLink technology, the cam system minimizes deadband without sacrificing modulation.


Frame FACT 11m, S3 Geometry, carbon front triangle, full carbon link and rear end, FACT IS construction, BB30, full internal cable routing, 135mm dropouts, lipped and sealed cartridge bearing pivots, replaceable derailleur hanger, 200mm of travel
Forks RockShox BoXXer Team 650b, coil spring, S: Extra soft spring, M: Soft spring, L: Medium spring, XL: Firm spring, 200mm of travel, charger damper, compression adjust, rebound adjust, alloy steerer, 48mm offset, Maxle Lite DH
Rear_Shock Custom Öhlins TTX, Twin-Tube desgin, high and low-speed compression adjust, rebound adjust, 9.5x3"
Handlebars Specialized DH, FACT carbon, 6-degree upsweep, 8-degree backsweep, 27mm rise, 780mm, 31.8mm
Stem Specialized P.Series MTB, forged alloy, 4-bolt, 45mm
Shifters 7 Speed XO DH, 7-speed, trigger
Rear_Mech SRAM X01 DH, short cage, 7-speed
Chainset SRAM X0 DH, BB30, carbon arms, triple base w/Gamut bashguard 165mm,SRAM 34T
Bottom_Bracket SRAM BB30, 83mm
Chain SRAM PC-1130, 11-speed w/PowerLink
Cassette SRAM X01 DH, 7-speed, 10-24t
Front_Brake Custom SRAM Guide, Guide lever with Code 4-piston caliper, hydraulic disc, metallic pads, 200mm rotor
Rear_Brake Custom SRAM Guide, Guide lever with Code 4-piston caliper, hydraulic disc, metallic pads, 180mm rotor
Rims Roval 650b, alloy, 24mm inner width, 32h
Front_Hub Specialized disc, alloy flange & disc mount, sealed cartridge bearings, 20mm thru-axle, 32h
Rear_Hub Custom DT Swiss 350, 135mm spacing, SRAM XD driver, 54T ratchet, 12mm thru-axle, 32h
Spokes DT Swiss Competition, stainless, black 1.8/2.0"
Tyres Butcher, DH casing, 650bx2.5", 60TPI, wire bead Front
Slaughter, DH casing, 650bx2.3", 60TPI, wire bead Rear
Seatpost Thomson, alloy, straight, 12-degree clamp
Pedals Specialized Boomslang, 6061 alloy, sealed cartridge bearings

Occasionally, without notice, manufacturers change product design and/or specifications.