Bicycle Archive · Specification report

1998 GT LTS-4000

Velopedia Archive ID 77977

Overview

Model year	1998
Brand	GT
Model	LTS-4000
Bicycle type	Mountain bike, front & rear suspension
Archive ID	77977
Original MSRP	$799.00
Colors	Green/purple, yellow/black
Sizes	14.5", 16", 18", 20"

Frameset

Frame construction	Welded
Frame material	4130 chromoly
Fork	Rock Shox Indy C
Fork material	Aluminum/magnesium, triple-clamp crown
Rear shock	Rock Shox, 4.0"/5.0" travel

Drivetrain

Component group	Mountain Mix
Shifters	Shimano STX RapidFire SL
Front derailleur	Shimano Alivio top-swing
Rear derailleur	Shimano STX
Crankset	SR CW-30, 22/32/42 teeth
Bottom bracket	Shimano BB-UN52
BB shell width	68mm English
Rear cogs	7-speed, 11 - 30 teeth
Chain	Shimano CN-IG70, 1/2 x 3/32"
Pedals	Steel cage, aluminum body w/clips & straps

Brakes

Brakes	Avid 1D-20 brakes, Avid AD-1.0 L levers

Cockpit & contact points

Headset	1 1/8" threadless Tioga
Handlebar	Kore Lite
Handlebar extensions	Not included
Stem	Aluminum
Saddle	WTB SST, hollow chromoly rails
Seatpost	Aluminum micro-adjust, 27.2mm diameter

Wheels & tires

Hubs	Front: aluminum, Q/R, Rear: Shimano AceraX
Rims	Weinmann Zac 19, 32-hole
Spokes	Stainless steel, 2.0mm straight gauge
Spoke nipples	Brass nipples
Front tire	26 x 1.95" WTB VelociRaptor
Wheel size	26" wheels

Geometry · Legacy reference

Head-tube angle	70°
Seat-tube angle	74°
Chainstay / rear center	424 mm
Wheelbase	1077 mm
Fork offset / rake	40.6 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 19, 2026.