Velopedia Bicycle Archive

2003 Specialized Vegas Dirtboy

Original specifications: N/A drivetrain · 20" wheels · legacy reference geometry.

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At a glance

Model year
2003
Category
BMX
Original MSRP
$200.00
Sizes
Expert
Geometry
Legacy reference
In this record
22 specifications · archived image · original MSRP · geometry
Archive ID
30185
Model history 1 other year
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Manufacturer catalog

Published sizes and colors

1 size

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

Published sizes

Expert

Frameset

Frame ConstructionTIG-welded
Frame Material4130 chromoly
ForkSpecialized
Fork Material4130 chromoly, unicrown crown

Drivetrain

CranksetSpecialized, 44 teeth
Bottom BracketSpecialized
BB Shell WidthAmerican
Rear Cogs1-speed, 16 teeth
ChainKMC Z510HX, 1/2 X 1/8"
PedalsAluminum platform

Brakes

BrakesRush RX 4.0 front/Tektro SBB-07A rear brakes, Rush 2.4 levers

Cockpit & Contact Points

Headset1 1/8" threadless steel w/SST Oryg detangler
HandlebarSpecialized
StemSpecialized aluminum
SaddleSpecialized Jumping
SeatpostAluminum, 30.9mm diameter

Wheels & Tires

HubsSpecialized aluminum
RimsSun Rims ZX-25, 36-hole
SpokesStainless steel, 14ga. (2.0mm) straight gauge
Spoke NipplesBrass nipples
Front Tire20 x 2.125" Specialized Spanky Sport
Wheel Size20" wheels

Historical reference geometry

Geometry

Legacy reference · 3 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 tube482.6 mm
Head-tube angle74°
Seat-tube angle71°

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

Parts & serviceability

Find replacement parts

3 top part searches
Front tireMatching fit standard
20x2.125" Specialized Spanky Sport Named tire and published size
SaddleQualified part search
Specialized Jumping Named archived component — 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 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 Vegas Dirtboy · Freestyle/jumping · Published sizes: Expert

Archived: Frame: TIG-welded · Fork: Specialized · 4130 chromoly, unicrown crown

Archived: Crankset: Specialized, 44 teeth · Bottom bracket: Specialized · Rear cogs: 1-speed, 16 teeth · Chain: KMC Z510HX, 1/2 x 1/8"

Archived: Brakes: Rush RX 4.0 front/Tektro SBB-07A rear brakes, Rush 2.4 levers

Archived: Wheel size: 20" wheels · Rims: Sun Rims ZX-25, 36-hole · Hubs: Specialized aluminum · Front tire: 20 x 2.125" Specialized Spanky Sport

Controls and contact points

Archived: Headset: 1 1/8" threadless steel w/SST Oryg detangler · Handlebar: Specialized · Stem: Specialized aluminum · Seatpost: Aluminum, 30.9mm diameter · Saddle: Specialized Jumping · Pedals: Aluminum platform

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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