Bicycle Archive · Specification report

2003 Mongoose Expert

Velopedia Archive ID 38504

Overview

Model year	2003
Brand	Mongoose
Model	Expert
Bicycle type	BMX
Archive ID	38504
Original MSRP	$299.99
Colors	Gray
Sizes	Pro

Frameset

Frame construction	TIG-welded
Frame material	Chromoly main triangle/hi-tensile steel rear stays
Fork material	Chromoly, unicrown crown
Rear shock	N/A

Drivetrain

Component group	N/A
Shifters	N/A
Front derailleur	N/A
Rear derailleur	N/A
Crankset	1-piece
Bottom bracket	One piece
BB shell width	American
Rear cogs	1-speed
Chain	KMC Z510 CP, 1/2 X 1/8"
Pedals	Mongoose alloy platform

Cockpit & contact points

Headset	1 1/8" threadless Tange-Seiki Fatty MX
Handlebar	Chromoly BMX
Handlebar extensions	N/A
Stem	Aluminum 4 bolt
Saddle	Mongoose Jumper
Seatpost	Pillar, steel

Wheels & tires

Hubs	Aluminum, nutted
Rims	Alex MX-22, 48-hole
Front tire	20 x 2.25" Maxxis Max Daddy
Wheel size	20" wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 26, 2026.