Velopedia Bicycle Archive

2003 Specialized Rockhopper Comp Disc

Original specifications: Mountain Mix drivetrain · 26" wheels.

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At a glance

Model year
2003
Category
Mountain
In this record
27 specifications
Archive ID
30215
Model history 3 other years
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Frameset

Frame ConstructionTIG-welded
Frame MaterialSpecialized A1 aluminum
ForkAnswer Manitou Axel Super, 80mm travel
Fork MaterialAluminum/magnesium, single crown

Drivetrain

Component GroupMountain Mix
ShiftersShimano Deore RapidFire SL
Front DerailleurShimano Deore, bottom-pull/clamp-on 34.9mm
Rear DerailleurShimano Deore LX SGS
CranksetSpecialized Forearm II Comp, 22/32/44 teeth
Bottom BracketShimano BB-UN25, 113mm spindle
BB Shell Width68mm English
Rear Cogs9-speed, 11 - 32 teeth
ChainShimano CN-HG53, 1/2 x 3/32"
PedalsShimano PD-M505 SPD

Brakes

BrakesShimano Deore M525 hydraulic disc brakes, Shimano Deore M525 hydraulic levers

Cockpit & Contact Points

Headset1 1/8" threadless aluminum threadless
HandlebarSpecialized aluminum
Handlebar ExtensionsNot included
StemSpecialized aluminum
SaddleSpecialized Body Geometry
SeatpostSpecialized aluminum, 30.9mm diameter

Wheels & Tires

HubsFront: Specialized aluminum, Rear: Shimano HB-M475
RimsMavic X139 Disc, 32-hole
SpokesStainless steel, 15ga. (1.8mm) straight gauge
Spoke NipplesBrass nipples
Front Tire26 x 2.00" Specialized Roll-X
Wheel Size26" wheels

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 build44/32/22T · 11–32T · 9-speed
Lowest0.69:1 Highest4.00:1 Total range582%

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
ChainExact archived part
Shimano CN-HG53, 1/2 x 3/32" Exact archived model
Front tireMatching fit standard
26x2.00" Specialized Roll-X Named tire and published size
Bottom bracketExact archived part
Shimano BB-UN25, 113mm spindle Exact archived model
More qualified parts (6)
PedalsExact archived part
Shimano PD-M505 SPD Exact archived model
SaddleQualified part search
Specialized Body Geometry Named archived component — verify exact version
CranksetQualified part search
Specialized Forearm II Comp, 22/32/44 teeth Named archived component — verify exact version
Rear derailleurMatching configuration
Shimano Deore LX SGS Interpreted as Shimano Deore LX · 9-speed · mechanical Named component · published drivetrain speed — verify exact version
ShiftersQualified part search
Shimano Deore RapidFire SL Interpreted as Shimano Deore · 9-speed · mechanical Named component · published drivetrain speed — verify exact version
SeatpostMatching fit standard
30.9 mm seatpost Published diameter — verify length and setback

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 19 checks based on 6 archived component groups Open checklistClose checklist
0 of 19 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: 2003 Specialized Rockhopper Comp Disc · Mountain bike, front suspension

Archived: Frame: TIG-welded · Fork: Answer Manitou Axel Super, 80mm travel · Aluminum/magnesium, single crown

Archived: Fork: Answer Manitou Axel Super, 80mm travel

Archived: Group: Mountain Mix · Shifters: Shimano Deore RapidFire SL · Front derailleur: Shimano Deore, bottom-pull/clamp-on 34.9mm · Rear derailleur: Shimano Deore LX SGS · Crankset: Specialized Forearm II Comp, 22/32/44 teeth · Bottom bracket: Shimano BB-UN25, 113mm spindle · Rear cogs: 9-speed, 11 - 32 teeth · Chain: Shimano CN-HG53, 1/2 x 3/32"

Archived: Brakes: Shimano Deore M525 hydraulic disc brakes, Shimano Deore M525 hydraulic levers

Archived: Wheel size: 26" wheels · Rims: Mavic X139 Disc, 32-hole · Hubs: Front: Specialized aluminum, Rear: Shimano HB-M475 · Front tire: 26 x 2.00" Specialized Roll-X

Controls and contact points

Archived: Headset: 1 1/8" threadless aluminum threadless · Handlebar: Specialized aluminum · Stem: Specialized aluminum · Seatpost: Specialized aluminum, 30.9mm diameter · Saddle: Specialized Body Geometry · Pedals: Shimano PD-M505 SPD

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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