VelopediaBicycle Archive · Specification report

1999 GT Avalanche (02)

Velopedia Archive ID 82081

Overview

Model year1999
BrandGT
ModelAvalanche (02)
Bicycle typeMountain bike, front suspension
Archive ID82081
Original MSRP$1,141.65
ColorsBillet
Sizes12.5", 14.5", 16", 18", 20"

Frameset

Frame constructionTIG-welded
Frame material7000 aluminum, butted
ForkMarzocchi Bomber Z-2 BAM, 3.3" travel
Fork materialAluminum, triple-clamp crown
Rear shockN/A

Drivetrain

Component groupMountain Mix
ShiftersShimano Deore LX RapidFire SL
Front derailleurShimano Deore LX
Rear derailleurShimano Deore XT
CranksetShimano Deore LX, 22/32/44 teeth
Bottom bracketShimano cartridge
BB shell width73mm English
Rear cogs9-speed, 11 - 32 teeth
ChainShimano CN-HG72, 1/2 x 3/32"
PedalsTime ATAC

Brakes

BrakesShimano Deore LX V-Brake brakes, Shimano Deore LX levers

Cockpit & contact points

Headset1 1/8" threadless Aheadset SAS
HandlebarTitec Enduro HF
Handlebar extensionsNot included
StemAzonic ORC
SaddleSDG Comp Belair, chromoly rails
SeatpostAluminum micro-adjust

Wheels & tires

HubsFront: GT suspension Q/R, Rear: Shimano Deore LX
RimsMavic X221, 28-hole/32-hole
SpokesDT stainless steel, 2.0mm straight gauge
Spoke nipplesBrass nipples
Front tire26 x 1.95" Michelin Wild Gripper kevlar
Wheel size26" wheels

Geometry · Legacy reference

Top tube575 mm
Head-tube angle70.5°
Seat-tube angle73.5°
Chainstay / rear center426 mm
Wheelbase1073 mm

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