Bicycle Archive · Specification report

1998 GT Pro Series Mini

Velopedia Archive ID 73041

Overview

Model year	1998
Brand	GT
Model	Pro Series Mini
Bicycle type	BMX
Archive ID	73041
Original MSRP	$329.00
Colors	Chrome-plated
Sizes	Mini

Frameset

Frame construction	TIG-welded
Frame material	4130 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 3-piece jr aluminum, 43 teeth
Bottom bracket	Sealed cartridge
Rear cogs	1-speed, 16 teeth
Chain	1/2 x 1/8"
Pedals	Steel cage, resin body

Brakes

Brakes	Side-pull rear brakes, Dia-Compe MX-122 levers

Cockpit & contact points

Headset	1" threadless Aheadset MX
Handlebar	GT Jr aluminum
Handlebar extensions	N/A
Stem	GT Mini Piston
Saddle	GT
Seatpost	GT aluminum

Wheels & tires

Hubs	GT Mohawk
Rims	Weinmann Zac 2121
Spokes	Steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	20 x 1 1/8" GT AA Pro
Wheel size	20" wheels

Geometry · Legacy reference

Top tube	453.4 mm
Head-tube angle	72.5°
Seat-tube angle	71°
Chainstay / rear center	348 mm
Wheelbase	863.6 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 26, 2026.