Bicycle Archive · Specification report

1997 GT Mach One

Velopedia Archive ID 67378

Overview

Model year	1997
Brand	GT
Model	Mach One
Bicycle type	BMX
Archive ID	67378
Original MSRP	$355.99
Colors	Black, blue, chrome-plated
Sizes	Boys

Frameset

Frame construction	TIG-welded
Frame material	Chromoly
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 Power Series 1-piece chromoly, 44 teeth
Bottom bracket	One piece
BB shell width	68mm Threadless
Rear cogs	1-speed, 16 teeth
Chain	KMC 410, 1/2 x 3/32"
Pedals	GT aluminum platforms

Brakes

Brakes	Tektro 875A V-brake rear brakes, aluminum levers

Cockpit & contact points

Headset	1 1/8" threadless steel
Handlebar	GT Expert chromoly
Handlebar extensions	N/A
Stem	GT aluminum
Saddle	GT Drop Nose
Seatpost	Chromoly micro-adjust

Wheels & tires

Hubs	GT Mohawk
Rims	Weinmann 4019, 36-hole
Spokes	Steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	20 x 2.125" GT AA Pro
Rear tire	20 x 1.75" GT AA Pro
Wheel size	20" wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on November 12, 2026.