Bicycle Archive · Specification report

2004 GT Power Series Jr.

Velopedia Archive ID 31445

Overview

Model year	2004
Brand	GT
Model	Power Series Jr.
Bicycle type	BMX
Archive ID	31445
Original MSRP	$299.99
Colors	Blue
Sizes	Junior

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	3-piece aluminum, 38 teeth
Bottom bracket	Sealed cartridge
BB shell width	68mm English
Rear cogs	1-speed, 15 teeth
Chain	KMC Z30, 1/2 x 1/8"
Pedals	Aluminum

Brakes

Brakes	Tektro 926A Mini V rear brakes, Tektro 316A rear levers

Cockpit & contact points

Headset	1" Semi integrated threadless
Handlebar	GT Mini BMX
Handlebar extensions	N/A
Stem	GT Mini Piston
Saddle	GT Mini
Seatpost	Aluminum, 22.2mm (7/8 inch) diameter

Wheels & tires

Hubs	GT Mini
Rims	Alex DR-13, 28-hole
Spokes	Steel, 15ga. (1.8mm) straight gauge
Spoke nipples	Aluminum nipples
Front tire	20 x 1 1/8" IRC Siren
Wheel size	20" wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 25, 2026.