Bicycle Archive · Specification report

1997 GT Vertigo

Velopedia Archive ID 60031

Overview

Model year	1997
Brand	GT
Model	Vertigo
Bicycle type	Freestyle/jumping
Archive ID	60031
Original MSRP	$293.99
Colors	Blue, chrome-plated, green
Sizes	Boys

Frameset

Frame construction	TIG-welded
Frame material	Chromoly main triangle/hi-tensile steel rear stays
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 1-piece steel, 43 teeth
Bottom bracket	One piece
BB shell width	68mm Threadless
Rear cogs	1-speed, 16 teeth
Chain	KMC 410, 1/2 x 1/8"
Pedals	GT nylon platforms

Brakes

Brakes	Dia-Compe Bulldog brakes, aluminum levers

Cockpit & contact points

Headset	1" steel w/SST Oryg detangler
Handlebar	GT chromoly
Handlebar extensions	N/A
Stem	GT
Saddle	GT plastic
Seatpost	GT laid back, chromoly

Wheels & tires

Hubs	Aluminum nutted
Rims	Weinmann aluminum, 48-hole
Spokes	Steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	20 X 1.75" GT LP III
Wheel size	20" wheels

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 27, 2026.