Velopedia Bicycle Archive

2015 Specialized Demo 8 I Carbon

Original specifications: DH mix drivetrain · 27.5 wheels.

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At a glance

Model year
2015
Category
Mountain
Original MSRP
$6,500.00
Sizes
Short, M, Long, X-Long
Colors
Gloss Carbon/Green/White, Satin Carbon/Charcoal
In this record
25 specifications · 2 archived images · original MSRP
Archive ID
1003054
Model history 2 other years
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Manufacturer catalog

Published sizes and colors

4 sizes · 2 colors

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

ShortMLongX-Long

Published colors

Gloss Carbon/Green/WhiteSatin Carbon/Charcoal

Frameset

Frame ConstructionFACT 10m carbon, S3 Geometry, carbon front triangle, carbon seat stay, FACT IS construction, PF30 BB, full internal cable routing, 135mm dropouts, lipped and sealed cartridge bearing pivots, replaceable derailleur hanger, 200mm
Frame MaterialCarbon Fiber/Aluminum
ForkRockShox Boxxer RC 650b, alloy steerer, compression and rebound adj., 20mm Maxle DH thru-axle, S: extra-soft spring, M: soft spring, L/XL: medium spring, 200mm travel
Fork MaterialSuspension
Rear ShockCustom Öhlins TTX22M, coil over w/ piggy back, spherical bearing mount, high/low speed compression, rebound adj., 9.5x3.0", M: 76x434lb, L: 84x479lb, XL: 92x525lb

Drivetrain

Component GroupDH mix
ShiftersSRAM X7, 10-speed, w/ MatchMaker clamp
Front DerailleurNone
Rear DerailleurSRAM X9 Type 2, 10-speed w/ shift limit, mid cage
CranksetCustom SRAM, PB30, 7050 alloy arms, 36T ring
Bottom BracketSRAM, BB30, 83mm adapter
BB Shell Width83mm
Rear CogsSRAM PG 1030, hot rod 7-speed setup, 11-24
PedalsSpecialized Boomslang, 10mm low-profile, sealed bearing

Brakes

BrakesSRAM Guide R, metallic pads, Guide R caliper, 200mm rotor, SRAM Guide R, metallic pads, Guide R caliper, 200mm rotor

Cockpit & Contact Points

Headset1-1/2" semi-integrated for 1-1/8" steerer, cartridge bearings
HandlebarSpecialized Demo, low-rise, 7050 alloy, 8-degree backsweep, 6-degree upsweep, 31.8mm
StemSpecialized P.Series MTB, direct mount, forged alloy, 4-bolt
SaddleBody Geometry Phenom Comp, hollow Cr-Mo rails, 143mm
SeatpostSpecialized 6061 alloy, 2-bolt, 0mm setback, 30.9mm

Wheels & Tires

HubsSpecialized Hi Lo disc, sealed cartridge bearings, 20mm thru-axle, 32h, Specialized Hi Lo disc, sealed cartridge bearings, 12x135mm, 32h
RimsRoval 650b, alloy, 24mm inner width, 32h
SpokesDT Swiss Industry, stainless
Front TireSpecialized Butcher DH, 60TPI, wire bead, dual compound, 650bx2.5", Specialized Slaughter DH, 60TPI, wire bead, dual compound, 650bx2.3"
Wheel Size27.5

Published drivetrain ratios

Gearing

Chainring ÷ rear sprocket

Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.

Published build36T · 11–24T
Lowest1.50:1 Highest3.27:1 Total range218%

The bar uses the same mechanical-ratio calculation as Compare. Wheel-dependent speed appears only when the record includes an exact ISO/ETRTO rear tire size; no tire size is assumed.

Parts & serviceability

Find replacement parts

3 top part searches
Bottom bracketQualified part search
SRAM, BB30, 83mm adapter Named archived component — verify dimensions
PedalsQualified part search
Specialized Boomslang, 10mm low-profile, sealed bearing Named archived component — verify exact version
CranksetQualified part search
Custom SRAM, PB30, 7050 alloy arms, 36T ring Named archived component — verify exact version
More qualified parts (5)
HandlebarQualified part search
Specialized Demo, low-rise, 7050 alloy, 8-degree backsweep, 6-degree upsweep, 31.8mm Named archived component — verify dimensions
StemQualified part search
Specialized P.Series MTB, direct mount, forged alloy, 4-bolt Named archived component — verify dimensions
SeatpostMatching fit standard
30.9 mm seatpost Published diameter — verify length and setback
RimsQualified part search
Roval 650b, alloy, 24mm inner width, 32h Named archived component — verify dimensions
HubsQualified part search
Specialized Hi Lo disc, sealed cartridge bearings, 20mm thru-axle, 32h, Specialized Hi Lo disc, sealed cartridge bearings, 12x135mm, 32h Named archived component — verify dimensions

Searches use the archived manufacturer specification, not the components currently installed on a particular bicycle. Confirm the exact model, size and fit before ordering. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases. Commercial relationships do not influence Archive specifications or analysis.

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Bike-specific inspection checklist 22 checks based on 6 archived component groups Open checklistClose checklist
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This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.

Archived: 2015 Specialized Demo 8 I Carbon · Mountain Dual Suspension · Published sizes: Short, M, Long, X-Long

Archived: Frame: FACT 10m carbon, S3 Geometry, carbon front triangle, carbon seat stay, FACT IS construction, PF30 BB, full internal cable routing, 135mm dropouts, lipped and sealed cartridge bearing pivots, replaceable derailleur hanger, 200mm · Fork: RockShox Boxxer RC 650b, alloy steerer, compression and rebound adj., 20mm Maxle DH thru-axle, S: extra-soft spring, M: soft spring, L/XL: medium spring, 200mm travel · Suspension

Archived: Fork: RockShox Boxxer RC 650b, alloy steerer, compression and rebound adj., 20mm Maxle DH thru-axle, S: extra-soft spring, M: soft spring, L/XL: medium spring, 200mm travel · Rear shock: Custom Öhlins TTX22M, coil over w/ piggy back, spherical bearing mount, high/low speed compression, rebound adj., 9.5x3.0", M: 76x434lb, L: 84x479lb, XL: 92x525lb

Archived: Group: DH mix · Shifters: SRAM X7, 10-speed, w/ MatchMaker clamp · Rear derailleur: SRAM X9 Type 2, 10-speed w/ shift limit, mid cage · Crankset: Custom SRAM, PB30, 7050 alloy arms, 36T ring · Bottom bracket: SRAM, BB30, 83mm adapter · Rear cogs: SRAM PG 1030, hot rod 7-speed setup, 11-24

Archived: Brakes: SRAM Guide R, metallic pads, Guide R caliper, 200mm rotor, SRAM Guide R, metallic pads, Guide R caliper, 200mm rotor

Archived: Wheel size: 27.5 · Rims: Roval 650b, alloy, 24mm inner width, 32h · Hubs: Specialized Hi Lo disc, sealed cartridge bearings, 20mm thru-axle, 32h, Specialized Hi Lo disc, sealed cartridge bearings, 12x135mm, 32h · Front tire: Specialized Butcher DH, 60TPI, wire bead, dual compound, 650bx2.5", Specialized Slaughter DH, 60TPI, wire bead, dual compound, 650bx2.3"

Controls and contact points

Archived: Headset: 1-1/2" semi-integrated for 1-1/8" steerer, cartridge bearings · Handlebar: Specialized Demo, low-rise, 7050 alloy, 8-degree backsweep, 6-degree upsweep, 31.8mm · Stem: Specialized P.Series MTB, direct mount, forged alloy, 4-bolt · Seatpost: Specialized 6061 alloy, 2-bolt, 0mm setback, 30.9mm · Saddle: Body Geometry Phenom Comp, hollow Cr-Mo rails, 143mm · Pedals: Specialized Boomslang, 10mm low-profile, sealed bearing

Before and during the test ride

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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

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