Velopedia Bicycle Archive

2006 Specialized Demo 9 Pro

Original specifications: Shimano Deore XT · 9-speed · mechanical rear derailleur · 26" wheels.

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At a glance

Model year
2006
Category
Mountain
Original MSRP
$5,500.00
In this record
27 specifications · archived image · original MSRP
Archive ID
11817
Model history 2 other years
Original buildAluminum · Mountain Mix · 26" wheels

Frameset

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

Drivetrain

Component GroupMountain Mix
ShiftersShimano Deore LX
Rear DerailleurShimano Deore XT GS
CranksetTruvativ Holzfeller, 38 teeth
Bottom BracketTruvativ GIGA pipe DH, 128mm spindle
BB Shell Width73mm English
Rear Cogs9-speed, 11 - 34 teeth
ChainShimano CN-HG73, 1/2 x 3/32"
PedalsMagnesium

Brakes

BrakesHayes HFX Magnesium Hydraulic front/Hayes HFX Magnesium Hydraulic Disc rear brakes, Hayes levers

Cockpit & Contact Points

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

Wheels & Tires

HubsFront: Specialized Stout disc, Rear: Specialized Stout disc 150mm
RimsMavic EX 729D, 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

Gearing

Chainring ÷ rear sprocket

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

RPM
Theoretical speed from published tire dimensions; see the evidence note below.
Published build38T · 11–34T · 9-speed
Lowest1.12:1 Highest3.45:1 Total range309%
Estimated speed Lowest gear8.1 mph Highest gear25.2 mph

Estimate uses the published front tire 26×2.6 as a proxy, corroborated by the wheel size. Rear tire size is not published or verified. Approximate circumference; actual rollout varies with tire and pressure. Theoretical, not a maximum achievable speed.

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Parts & serviceability

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Original specifications
Chain · Original
Shimano CN-HG73, 1/2 x 3/32"

Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases.

Bike-specific inspection checklist 21 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: 2006 Specialized Demo 9 Pro · Mountain bike, front & rear suspension

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

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

Archived: Group: Mountain Mix · Shifters: Shimano Deore LX · Rear derailleur: Shimano Deore XT GS · Crankset: Truvativ Holzfeller, 38 teeth · Bottom bracket: Truvativ GIGA pipe DH, 128mm spindle · Rear cogs: 9-speed, 11 - 34 teeth · Chain: Shimano CN-HG73, 1/2 x 3/32"

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

Archived: Wheel size: 26" wheels · Rims: Mavic EX 729D, 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" threadless chromoly · Handlebar: Specialized Demo Riser · Stem: Manitou Integrated 31.8 · Seatpost: Syncros Derived 2-bolt · Saddle: Specialized Freeride · Pedals: Magnesium

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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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