Velopedia Bicycle Archive

2003 Specialized Allez 24

Original specifications: Road Mix drivetrain · 700c wheels · legacy reference geometry.

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At a glance

Model year
2003
Category
Road
Original MSRP
$600.00
Sizes
50cm, 52cm, 54cm, 56cm, 58cm, 61cm
Colors
Matte Blue
Geometry
Legacy reference
In this record
27 specifications · archived image · original MSRP · geometry
Archive ID
30086
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Manufacturer catalog

Published sizes and colors

6 sizes · 1 color

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

Published sizes

50cm52cm54cm56cm58cm61cm

Published colors

Matte Blue

Frameset

Frame ConstructionTIG-welded
Frame MaterialAluminum, butted
ForkSpecialized
Fork MaterialAluminum/chrome-moly, unicrown crown

Drivetrain

Component GroupRoad Mix
ShiftersShimano Sora STI Dual Control
Front DerailleurShimano Sora, bottom-pull/clamp-on 31.8mm
Rear DerailleurShimano Tiagra GS
CranksetSpecialized Comp, 30/42/52 teeth
Bottom BracketShimano BB-UN25, 118mm spindle
BB Shell Width68mm English
Rear Cogs8-speed, 12 - 25 teeth
ChainShimano CN-HG51, 1/2 x 3/32"
PedalsResin body, aluminum cage

Brakes

BrakesAluminum dual pivot brakes, Shimano Sora STI Dual Control levers

Cockpit & Contact Points

Headset1 1/8" integrated aluminum
HandlebarSpecialized Comp
Handlebar ExtensionsNot included
StemAluminum
SaddleSpecialized Body Geometry Comp
SeatpostAluminum, 27.2mm diameter

Wheels & Tires

HubsSpecialized aluminum
RimsAlex DA-22, 32-hole
SpokesDT stainless steel, 14ga. (2.0mm) straight gauge
Spoke NipplesBrass nipples
Front Tire700 x 23c Specialized Turbo Sport
Wheel Size700c wheels

Historical reference geometry

Geometry

Legacy reference · 6 measurements

This historical geometry describes the model, but the original source does not identify its frame size. Use it as a period reference, not a size-specific fit comparison.

MeasurementLegacy reference
Top tube563 mm
Head-tube angle73.5°
Seat-tube angle73.5°
Chainstay / rear center405 mm
Wheelbase983 mm
Fork offset / rake40 mm

The preserved source contains one model-level geometry set without an identified frame size.

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 build52/42/30T · 12–25T · 8-speed
Lowest1.20:1 Highest4.33:1 Total range361%

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
ChainMatching fit standard
Shimano CN-HG51, 1/2 x 3/32" Exact archived model
Front tireMatching fit standard
700 x 23c Specialized Turbo Sport Named tire and published size
Bottom bracketExact archived part
Shimano BB-UN25, 118mm spindle Exact archived model
More qualified parts (6)
SaddleQualified part search
Specialized Body Geometry Comp Named archived component — verify exact version
CranksetQualified part search
Specialized Comp, 30/42/52 teeth Named archived component — verify exact version
Rear derailleurMatching configuration
Shimano Tiagra GS Interpreted as Shimano Tiagra · 8-speed · mechanical Named component · published drivetrain speed — verify exact version
ShiftersQualified part search
Shimano Sora STI Dual Control Interpreted as Shimano Sora · 8-speed · mechanical Named component · published drivetrain speed — verify exact version
HandlebarQualified part search
Specialized Comp Named archived component — verify dimensions
SeatpostMatching fit standard
27.2 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 5 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 Allez 24 · Road race & triathlon · Published sizes: 50cm, 52cm, 54cm, 56cm, 58cm, 61cm

Archived: Frame: TIG-welded · Fork: Specialized · Aluminum/chrome-moly, unicrown crown

Archived: Group: Road Mix · Shifters: Shimano Sora STI Dual Control · Front derailleur: Shimano Sora, bottom-pull/clamp-on 31.8mm · Rear derailleur: Shimano Tiagra GS · Crankset: Specialized Comp, 30/42/52 teeth · Bottom bracket: Shimano BB-UN25, 118mm spindle · Rear cogs: 8-speed, 12 - 25 teeth · Chain: Shimano CN-HG51, 1/2 x 3/32"

Archived: Brakes: Aluminum dual pivot brakes, Shimano Sora STI Dual Control levers

Archived: Wheel size: 700c wheels · Rims: Alex DA-22, 32-hole · Hubs: Specialized aluminum · Front tire: 700 x 23c Specialized Turbo Sport

Controls and contact points

Archived: Headset: 1 1/8" integrated aluminum · Handlebar: Specialized Comp · Stem: Aluminum · Seatpost: Aluminum, 27.2mm diameter · Saddle: Specialized Body Geometry Comp · Pedals: Resin body, aluminum cage

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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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