VelopediaBicycle Archive · Specification report

1999 GT Outpost

Velopedia Archive ID 89146

Overview

Model year1999
BrandGT
ModelOutpost
Bicycle typeMountain bike, non-suspension
Archive ID89146
Original MSRP$324.99
ColorsH.O.T. Blue, H.O.T. Orange
Sizes12.5", 14.5", 16", 18", 20", 22"

Frameset

Frame constructionTIG-welded
Frame material7000 aluminum
ForkGT rigid
Fork materialChromoly, unicrown crown
Rear shockN/A

Drivetrain

Component groupMountain Mix
ShiftersShimano Altus EZ Fire Plus
Front derailleurShimano AceraX top-swing
Rear derailleurShimano Alivio
CranksetSR XR27, 28/38/48 teeth
Bottom bracketShimano cartridge
BB shell width68mm English
Rear cogs7-speed, 14 - 28 teeth
ChainShimano CN-UG50, 1/2 x 3/32"
PedalsGT nylon ATB

Brakes

BrakesProMax linear-pull brakes, Shimano Altus levers

Cockpit & contact points

Headset1 1/8" 1/8" sealed mech.
HandlebarFlat
Handlebar extensionsNot included
StemGT hi-rise
SaddleGT
SeatpostAluminum micro-adjust

Wheels & tires

HubsFront: aluminum, Q/R, Rear: Shimano 7-speed cassette
RimsWeinmann 519
SpokesStainless steel, 2.0mm straight gauge
Spoke nipplesBrass nipples
Front tire26 x 2.10" Maxxis
Wheel size26" wheels

Geometry · Legacy reference

Top tube575 mm
Head-tube angle70.5°
Seat-tube angle73.5°
Chainstay / rear center426 mm
Wheelbase1070 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on September 28, 2026.