Bicycle Archive · Specification report

1998 GT Pro Series (01)

Velopedia Archive ID 76759

Overview

Model year	1998
Brand	GT
Model	Pro Series (01)
Bicycle type	BMX
Archive ID	76759
Original MSRP	$329.00
Colors	Black, white
Sizes	Xlarge

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 1-piece chromoly, 43 teeth
BB shell width	American
Rear cogs	1-speed, 16 teeth
Chain	1/2 x 1/8"
Pedals	GT aluminum platforms

Brakes

Brakes	Dia-Compe VC-757 rear brakes, Dia-Compe MX-1 levers

Cockpit & contact points

Headset	1 1/8" threadless Aheadset SX
Handlebar	GT chromoly
Handlebar extensions	N/A
Stem	GT Piston Invet
Saddle	GT Drop Nose
Seatpost	GT aluminum micro-adjust

Wheels & tires

Hubs	GT Mohawk
Rims	Weinmann Zac 2121
Spokes	Steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	Front: 20 x 2.125" GT AA Pro, Rear: 20 x 1.75" GT AA Pro
Wheel size	20" wheels

Geometry · Legacy reference

Top tube	520.7 mm
Head-tube angle	73°
Seat-tube angle	70°
Chainstay / rear center	381 mm
Wheelbase	950 mm

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