Bicycle Archive · Specification report

2003 Specialized Vegas Dirtboy

Velopedia Archive ID 30185

Overview

Model year	2003
Brand	Specialized
Model	Vegas Dirtboy
Bicycle type	Freestyle/jumping
Archive ID	30185
Original MSRP	$200.00
Sizes	Expert

Frameset

Frame construction	TIG-welded
Frame material	4130 chromoly
Fork	Specialized
Fork material	4130 chromoly, unicrown crown
Rear shock	N/A

Drivetrain

Component group	N/A
Shifters	N/A
Front derailleur	N/A
Rear derailleur	N/A
Crankset	Specialized, 44 teeth
Bottom bracket	Specialized
BB shell width	American
Rear cogs	1-speed, 16 teeth
Chain	KMC Z510HX, 1/2 X 1/8"
Pedals	Aluminum platform

Brakes

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

Cockpit & contact points

Headset	1 1/8" threadless steel w/SST Oryg detangler
Handlebar	Specialized
Handlebar extensions	N/A
Stem	Specialized aluminum
Saddle	Specialized Jumping
Seatpost	Aluminum, 30.9mm diameter

Wheels & tires

Hubs	Specialized aluminum
Rims	Sun Rims ZX-25, 36-hole
Spokes	Stainless steel, 14ga. (2.0mm) straight gauge
Spoke nipples	Brass nipples
Front tire	20 x 2.125" Specialized Spanky Sport
Wheel size	20" wheels

Geometry · Legacy reference

Top tube	482.6 mm
Head-tube angle	74°
Seat-tube angle	71°

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 4, 2026.