Velopedia Bicycle Archive

2006 Specialized Demo 9

Mountain bike, front & rear suspension bicycle from the Velopedia specification archive.

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Original MSRP
$4,400.00
Archive ID
11816

Current market

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Velopedia analysis

What the specifications mean

Derived from the archived manufacturer recordHow Velopedia reads these specifications →

Suspension at both ends means fork and shock setup should be considered together; mismatched sag or rebound can leave the front and rear reacting very differently. The 309% cassette range describes the available gearing more clearly than the component-group name alone. Hydraulic disc brakes shift routine service toward pad and rotor condition, fluid leaks and use of the correct bleed fluid.

Suspension setup Front + rear Fork and shock pressure, sag and rebound should be balanced and recorded independently.
Gearing 309% cassette range Calculated from the published 11–34-tooth sprocket span.
Brake service Hydraulic disc Pad and rotor condition plus the correct bleed fluid are the primary service checks.
Frame material Aluminum / alloy Dents and cracking around welds, pivots and loaded junctions deserve attention.

Used-bike inspection

If you’re buying this bike used

Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.

Follow the full used-bike inspection order →
  • FrameLook closely for dents and hairline cracks around welds, the head tube and bottom-bracket area. Cosmetic scratches matter less than a change in shape or a crack line.Inspect the frame and fork →
  • BrakesBoth levers should feel firm and return cleanly. Check for fluid around the levers and calipers, inspect pad thickness and contamination, and look for worn or bent rotors.Inspect the brakes →
  • SuspensionAsk when the fork and shock were last serviced. Check the stanchions for damage, look for oil at the seals, cycle both units through their travel and test the suspension pivots for play.Evaluate the suspension →
  • DrivetrainShift through every gear under light load and measure chain wear. Confirm that the shifter, derailleur, chain and cassette belong to the same 9-speed system.Check drivetrain wear →
  • Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads.Check wheels and tires →
Bike-specific inspection checklist 21 checks based on 6 archived component groups Open checklistClose checklist
0 of 21 checked Progress stays in this browser for this bike.

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: 2006 Specialized Demo 9 · Mountain bike, front & rear suspension

Archived: Frame: TIG-welded · Fork: Marzocchi 888VF, 200mm travel · Magnesium/aluminum, dual crown

Archived: Fork: Marzocchi 888VF, 200mm travel · Rear shock: Manitou Swinger 4-way, 9" travel

Archived: Group: Mountain Mix · Shifters: Shimano Deore LX · Front derailleur: Shimano Deore LX, bottom-pull/clamp-on 34.9mm · Rear derailleur: Shimano Deore XT GS · Crankset: Truvativ Holzfeller, 24/36 teeth · Bottom bracket: Truvativ GIGA pipe, 128mm spindle · Rear cogs: 9-speed, 11 - 34 teeth · Chain: Shimano CN-HG73, 1/2 x 3/32"

Archived: Brakes: Hayes HFX-9 Hydraulic Disc brakes, Hayes HFX-9 Hydraulic Disc front/Hayes HFX-9 Hydraulic rear levers

Archived: Wheel size: 26" wheels · Rims: Mavic EX325, 36-hole · Hubs: Front: Specialized Stout disc, Rear: Specialized Stout disc 150mm · Front tire: 26 x 2.60" Specialized Roller RS

Controls and contact points

Archived: Headset: 1 1/8" integrated chromoly · Handlebar: Specialized Demo · Stem: Marzocchi Integrated 31.8 · Seatpost: Syncros Derived 2-bolt · Saddle: Specialized Freeride · Pedals: Aluminum platform

Before and during the test ride

Follow the full used-bike inspection order →

Interpretation based on the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.

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Frameset

Frame ConstructionTIG-welded
Frame MaterialAluminum
ForkMarzocchi 888VF, 200mm travel
Fork MaterialMagnesium/aluminum, dual crown
Rear ShockManitou Swinger 4-way, 9" travel

Drivetrain

Component GroupMountain Mix
ShiftersShimano Deore LX
Front DerailleurShimano Deore LX, bottom-pull/clamp-on 34.9mm
Rear DerailleurShimano Deore XT GS
CranksetTruvativ Holzfeller, 24/36 teeth
Bottom BracketTruvativ GIGA pipe, 128mm spindle
BB Shell Width73mm English
Rear Cogs9-speed, 11 - 34 teeth
ChainShimano CN-HG73, 1/2 x 3/32"
PedalsAluminum platform

Brakes

BrakesHayes HFX-9 Hydraulic Disc brakes, Hayes HFX-9 Hydraulic Disc front/Hayes HFX-9 Hydraulic rear levers

Cockpit & Contact Points

Headset1 1/8" integrated chromoly
HandlebarSpecialized Demo
Handlebar ExtensionsNot included
StemMarzocchi Integrated 31.8
SaddleSpecialized Freeride
SeatpostSyncros Derived 2-bolt

Wheels & Tires

HubsFront: Specialized Stout disc, Rear: Specialized Stout disc 150mm
RimsMavic EX325, 36-hole
SpokesDT Swiss stainless steel, 14ga. (2.0mm) straight gauge
Spoke NipplesBrass nipples
Front Tire26 x 2.60" Specialized Roller RS
Wheel Size26" wheels

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

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