Velopedia Bicycle Archive

1999 GT Rebound

Original specifications: Shimano Alivio · 8-speed · mechanical rear derailleur · 26" wheels · legacy reference geometry.

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At a glance

Model year
1999
Category
Mountain
Original MSRP
$522.99
Sizes
12.5", 14.5", 16", 18", 20"
Colors
Matte Pewter, Solar Citrus
Geometry
Legacy reference
In this record
27 specifications · original MSRP · geometry
Archive ID
81799
Model history 4 other years
Original build7005 aluminum, butted · Mountain Mix · 26" wheels

Manufacturer catalog

Published sizes and colors

5 sizes · 2 colors

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

12.5"14.5"16"18"20"

Published colors

Matte PewterSolar Citrus

Frameset

Frame ConstructionTIG-welded
Frame Material7005 aluminum, butted
ForkRock Shox Jett C, 1.8" travel
Fork MaterialAluminum/magnesium, triple-clamp crown

Drivetrain

Component GroupMountain Mix
ShiftersShimano Alivio RapidFire SL
Front DerailleurShimano AceraX top-swing
Rear DerailleurShimano Alivio
CranksetShimano AceraX, 22/32/42 teeth
Bottom BracketShimano cartridge
BB Shell Width68mm English
Rear Cogs8-speed, 11 - 30 teeth
ChainShimano IG, 1/2 x 3/32"
PedalsResin body/steel cage w/clips & straps

Brakes

BrakesProMax linear-pull brakes, Lee Chi GL-78, pewter finish levers

Cockpit & Contact Points

Headset1 1/8" threadless Aheadset STS
HandlebarFlat alloy
Handlebar ExtensionsNot included
StemAlloy Ahead type
SaddleSDG Comp
SeatpostAluminum micro-adjust

Wheels & Tires

HubsFront: GT suspension Q/R, Rear: Shimano Alivio
RimsWeinmann Zac 19, 32-hole
SpokesDT stainless steel, 2.0mm straight gauge
Spoke NipplesBrass nipples
Front Tire26 x 2.10" WTB VelociRaptor
Wheel Size26" wheels

Geometry

Legacy reference · 5 measurements

Model-level measurements; the frame size was not recorded. Use these as a historical reference, not for size-specific fit.

All geometry measurementsLegacy reference · 5 measurements
MeasurementLegacy reference
Top tube575 mm
Head-tube angle70.5°
Seat-tube angle73.5°
Chainstay / rear center426 mm
Wheelbase1070 mm

The preserved source contains one model-level geometry set without an identified frame size.

Gearing

Chainring ÷ rear sprocket

Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.

RPM
Theoretical speed from published tire dimensions; see the evidence note below.
Published build42/32/22T · 11–30T · 8-speed
Lowest0.73:1 Highest3.82:1 Total range521%
Estimated speed Lowest gear5.2 mph Highest gear26.8 mph

Estimate uses the published front tire 26×2.1 as a proxy, corroborated by the wheel size. Rear tire size is not published or verified. Approximate circumference; actual rollout varies with tire and pressure. Theoretical, not a maximum achievable speed.

Bike-specific inspection checklist 20 checks based on 6 archived component groups Open checklistClose checklist
0 of 20 checked Progress stays in this browser for this bike.

This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.

Archived: 1999 GT Rebound · Mountain bike, front suspension · Published sizes: 12.5", 14.5", 16", 18", 20"

Archived: Frame: TIG-welded · Fork: Rock Shox Jett C, 1.8" travel · Aluminum/magnesium, triple-clamp crown

Archived: Fork: Rock Shox Jett C, 1.8" travel

Archived: Group: Mountain Mix · Shifters: Shimano Alivio RapidFire SL · Front derailleur: Shimano AceraX top-swing · Rear derailleur: Shimano Alivio · Crankset: Shimano AceraX, 22/32/42 teeth · Bottom bracket: Shimano cartridge · Rear cogs: 8-speed, 11 - 30 teeth · Chain: Shimano IG, 1/2 x 3/32"

Archived: Brakes: ProMax linear-pull brakes, Lee Chi GL-78, pewter finish levers

Archived: Wheel size: 26" wheels · Rims: Weinmann Zac 19, 32-hole · Hubs: Front: GT suspension Q/R, Rear: Shimano Alivio · Front tire: 26 x 2.10" WTB VelociRaptor

Controls and contact points

Archived: Headset: 1 1/8" threadless Aheadset STS · Handlebar: Flat alloy · Stem: Alloy Ahead type · Seatpost: Aluminum micro-adjust · Saddle: SDG Comp · Pedals: Resin body/steel cage w/clips & straps

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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

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