VelopediaBicycle Archive · Specification report

1998 GT Aggressor

Velopedia Archive ID 75114

Overview

Model year1998
BrandGT
ModelAggressor
Bicycle typeMountain bike, front suspension
Archive ID75114
Original MSRP$392.00
ColorsBlack, orange
Sizes12.5", 14.5", 16", 18", 19", 20"

Frameset

Frame constructionTIG-welded
Frame materialChromoly
ForkRST 261
Fork materialChromoly, triple-clamp crown
Rear shockN/A

Drivetrain

Component groupMountain Mix
ShiftersShimano Alivio RapidFire Plus
Front derailleurShimano Altus top-swing
Rear derailleurShimano Alivio
CranksetSR/Suntour XR25, 24/34/46 teeth
Bottom bracketShimano BB-LP27
BB shell width68mm English
Rear cogs7-speed, 11 - 28 teeth
ChainShimano CN-UG50, 1/2 x 3/32"
PedalsResin

Brakes

BrakesDia-Compe VC-757 brakes, Dia-Compe DP-7 levers

Cockpit & contact points

Headset1 1/8" sealed
HandlebarFlat
Handlebar extensionsNot included
StemGT hi-rise
SaddleGT
SeatpostAluminum micro-adjust, 26.8mm diameter

Wheels & tires

HubsAluminum, Q/R
RimsWeinmann 519, 36-hole
SpokesStainless steel, 2.0mm straight gauge
Spoke nipplesBrass nipples
Front tire26 x 2.10" knobby
Wheel size26" wheels

Geometry · Legacy reference

Head-tube angle70°
Seat-tube angle73.5°
Chainstay / rear center420 mm
Wheelbase1059 mm

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