Specialized S-Works Demo 8 27.5" Mountain Bike 2018 - Downhill Full Suspension MTB
Push your limits further. The Specialized S-Works Demo 8 is a downhill mountain bike that has cut its teeth on the very toughest DH tracks in the world. The S-Works Demo 8 is a DH bike that is built for raw speed in a game where every second counts.
Key Features:
- Fact 11m carbon front triangle with full carbon rear and Team alloy rocker link
- Custom Öhlins TTX shock offers outstanding damping characteristics
- RockShox Boxxer World Cup fork for hard hitting speed
- SRAM XO1 DH 1x7 speed drivetrain is built for DH
- Colours: Gloss Blue Tint Carbon/Mint/Black
- Sizes: Short, Medium, Long, Extra Long
- The Specialized S-Works Demo 8 is available with 0% APR finance
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 Öhlins TTX rear shock.
It's also been built off of our S3 650b geometry, ensuring a roomy top tube for added control, ultra-short, nimble chainstays, a low bottom bracket that keeps you feeling planted, and a slack front end that provides the utmost in responsive handling at speed.
The build is also dialled-in, sparing absolutely no expense in providing the utmost in lightweight, durable performance. This means that you get powerful SRAM Code RSC brakes 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 tires 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 fibre 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 manoeuvrability 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 favourite for gravity fiends.
A SRAM X01 DH 7-speed rear derailleur makes sure that your chain stays put on the cassette, and keeps all of your power taking you forward, no matter how gnarly the terrain.
All Tredz bikes are:
- Fully built & ready to ride
- Fully checked & tested by Cytech qualified mechanics
- Available with 0% APR finance on baskets over £99
- 365 day no hassle returns
- Free delivery in the UK Mainland on a date that suits you
In the box with every Tredz bike is:
- Free Tredz 9 key trail tool
- Free Tredz pedal spanner
- Free basic pedals
- Tredz drawstring kit bag
- 16 point quality control check sheet
- Basic bike setup instructions
- Free Cycle Plan insurance voucher (8 weeks)
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | S-Works FACT 11m, S3 Geometry, carbon front triangle, full carbon rear end, new team alloy link, FACT IS construction, BB30, full internal cable routing, 135mm dropouts, lipped and sealed cartridge bearing pivots, replaceable derailleur |
| Fork | RockShox BoXXer WC 27.5, Charger Damper, air spring, compression adjust, rebound adjust, alloy steerer, 48mm offset, Maxle Lite DH, 200mm of travel |
| Rear Shock | Custom Öhlins TTX, Twin-Tube design, high- and low-speed compression adjust, rebound adjust, 9.5x3" |
| Stem | Specialized Direct Mount DH Stem, two-piece, forged alloy, 45mm |
| Bars | Specialized DH, FACT carbon, 6-degree upsweep, 8-degree backsweep, 27mm rise, 800mm, 31.8mm |
| Front Brake | SRAM Code RSC, 4-piston caliper, hydraulic disc, metallic pads, 200mm rotor |
| Rear Brake | SRAM Code RSC, 4-piston caliper, hydraulic disc, metallic pads, 180mm rotor |
| Rear Mech | SRAM X01 DH, short cage, 7-speed |
| Shifters | SRAM X0 DH, 7-speed, trigger |
| Speed | 7 |
| Rims | Roval 27.5, alloy, 24mm internal width |
| 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,x2.0x1.8x2.0 |
| Front Tyre | Butcher, DH casing, 27.5 b x2.5", 60 TPI, wire bead |
| Rear Tyre | Butcher, DH casing, 27.5 b x2.3", 60 TPI, wire bead |
| Seat Post | Thomson, alloy, straight, 12-degree clamp |
| Chainset | SRAM X0 DH, carbon, 104 BCD spider, 165mm crankarm w/ Gamut bashguard |
| Bottom Bracket | SRAM BB30, 83mm |
| Chain | SRAM PC1130 chain, 11-speed w/ PowerLink |
| Cassette | SRAM X01 DH, 7-speed, 10-24t |
| Pedals | Specialized Boomslang, 6061 alloy, sealed cartridge bearings |
Mountain Bike Size Chart
|
Height
|
Bike Size
|
Mountain Bike Size
|
|
4’8” – 5’1”
143 – 155 cm
|
XXS
|
13” (33 cm)
|
|
5’1” – 5’4”
155 – 163 cm
|
XS
|
15” (38 cm)
|
|
5’4” – 5’7”
163 – 170 cm
|
S
|
16” (41 cm)
|
|
5’7” – 5’10”
170 – 178 cm
|
M
|
18” (46cm)
|
|
5’10” – 6’0”
178 – 183 cm
|
L
|
19” (48cm)
|
|
6’0” – 6’3”
183 – 191 cm
|
XL
|
20” (51 cm)
|
|
6’3” – 6’5”
191 – 196 cm
|
XXL
|
21” (53 cm)
|
|
6’5” – 6’9”
196 – 205 cm
|
XXXL
|
22” (56 cm)
|
* Mountain bikes are sized differently to road bikes. Typically, they are sized in inches as the first MTBs were produced in the USA. European brands like Lapierre and Haibike like to use centimetres for all their bikes. The measurements of their mountain bikes doesn’t match their road bikes but are like a simple conversion from the inches measurement. This is why we have included cm measurements in brackets for the Mountain bike column.
Read our bike size guide for more information on sizing.
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