Bicycle Archive · Specification report

2006 GT Mach One Jr. CB

Velopedia Archive ID 11383

Overview

Model year	2006
Brand	GT
Model	Mach One Jr. CB
Bicycle type	BMX
Archive ID	11383
Original MSRP	$149.99
Colors	Absolute Yellow
Sizes	16" wheel

Frameset

Frame construction	TIG-welded
Frame material	GT BMX dirt jump styling, Hi-Ten steel
Fork	GT BMX design
Fork material	Steel
Rear shock	N/A

Drivetrain

Component group	BMX
Shifters	N/A
Front derailleur	N/A
Rear derailleur	N/A
Crankset	Forged one-piece type, 36 teeth
Bottom bracket	Steel, Ball type
Rear cogs	1-speed
Chain	KMC Z410
Pedals	Jr. BMX design, resin

Brakes

Brakes	Hub type rear

Cockpit & contact points

Headset	1" Steel
Handlebar	GT BMX design, Hi-Ten, 5.7" rise
Handlebar extensions	N/A
Stem	1" steel with alloy cap
Saddle	GT Jr. BMX design, padded with stitched cover and 7mm rails
Seatpost	Steel, 22.2mm (7/8 inch) diameter

Wheels & tires

Hubs	Front: Steel, 3/8" axle, Rear: Coaster brake
Rims	Alloy, 28 hole, 28-hole
Spokes	14ga. (2.0mm) Straight Gauge
Spoke nipples	Brass nipples
Front tire	16 x 2.125"
Wheel size	16" wheels

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