Bicycle Archive · Specification report

2003 GT Power Series XL

Velopedia Archive ID 38639

Overview

Model year	2003
Brand	GT
Model	Power Series XL
Bicycle type	BMX
Archive ID	38639
Original MSRP	$399.99
Colors	Avus Blue
Sizes	One

Frameset

Frame construction	TIG-welded
Frame material	6061 T6 aluminum
Fork	GT
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	GT 3-piece chromoly, 44 teeth
Bottom bracket	Sealed cartridge
BB shell width	American
Rear cogs	1-speed, 16 teeth
Chain	KMC Z610HX, 1/2 X 3/16"
Pedals	GT BMX Design Aluminum

Brakes

Brakes	Tektro 920AL rear brakes, Tektro 313A rear levers

Cockpit & contact points

Headset	1 1/8" threadless Tange-Seiki TGMX
Handlebar	GT BMX
Handlebar extensions	N/A
Stem	GT Piston
Saddle	GT Dropnose
Seatpost	Aluminum micro-adjust, 27.0mm diameter

Wheels & tires

Hubs	GT Rhythm System II
Rims	Alex DX-2418
Spokes	Steel, 14ga. (2.0mm) straight gauge
Spoke nipples	Brass nipples
Front tire	20 x 2.125" GT Brody Knobs
Wheel size	20" wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on November 11, 2026.