Velopedia Bicycle Archive

1999 Oryx HTA 125

Original specifications: Shimano STX RC · 8-speed · mechanical rear derailleur · 26" wheels · 24.21 lb published weight.

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At a glance

Model year
1999
Category
Mountain
Original MSRP
$810.00
Sizes
40cm, 43cm, 46cm, 50cm
Colors
Blue
Weight
24.21 lb
In this record
27 specifications · original MSRP
Archive ID
88025
Model history 1 other year
Original buildAlcoa 6061 T6 aluminum · Mountain Mix · 26" wheels

Manufacturer catalog

Published sizes and colors

4 sizes · 1 color

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

Published sizes

40cm43cm46cm50cm

Published colors

Blue

Frameset

Frame ConstructionPulse-welded
Frame MaterialAlcoa 6061 T6 aluminum
ForkRock Shox Jett C, 1.8" travel
Fork MaterialAluminum/magnesium, triple-clamp crown

Drivetrain

Component GroupMountain Mix
ShiftersShimano STX-RC RapidFire SL
Front DerailleurShimano Alivio top-swing, top-pull
Rear DerailleurShimano STX-RC
CranksetCyclone 4 Rox, 22/34/42 teeth
Bottom BracketTien Hsin BB-7700, 110mm spindle
BB Shell Width68mm English
Rear Cogs8-speed, 11 - 30 teeth
ChainKMC IG-51, 1/2 x 3/32"
PedalsVictor VP-933A

Brakes

BrakesSRAM ESP 7.0 brakes, Avid AD-1.0 L levers

Cockpit & Contact Points

Headset1 1/8" threadless Ritchey Logic
Handlebar4 Rox alloy butted
Handlebar ExtensionsNot included
StemTahoma 4 Rox
SaddleVelo VL-1001
SeatpostTahoma DP 310

Wheels & Tires

HubsShimano Alivio
RimsSun Rims CR18, 32-hole
SpokesDT stainless steel, 1.8mm straight gauge
Spoke NipplesBrass nipples
Front Tire26 x 1.95" Kenda K-881
Wheel Size26" wheels

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 build42/34/22T · 11–30T · 8-speed
Lowest0.73:1 Highest3.82:1 Total range521%
Estimated speed Lowest gear5.1 mph Highest gear26.5 mph

Estimate uses the published front tire 26×1.95 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.

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Parts & serviceability

Find replacement parts

Original specifications
Front derailleur · Original
Shimano Alivio top-swing, top-pull Search: Shimano Alivio 8-speed mechanical front derailleur
Rear derailleur · Original
Shimano STX-RC Search: Shimano STX RC 8-speed mechanical rear derailleur
Shifters · Original
Shimano STX-RC RapidFire SL Search: Shimano STX RC 8-speed mechanical shifter
More parts (2)
Headset · Original
1 1/8" threadless Ritchey Logic
Hubs · Original
Shimano Alivio

Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. Velopedia may earn from qualifying eBay purchases.

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Bike-specific inspection checklist 20 checks based on 6 archived component groups Open checklistClose checklist
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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 Oryx HTA 125 · Mountain bike, front suspension · Published sizes: 40cm, 43cm, 46cm, 50cm

Archived: Frame: Pulse-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 STX-RC RapidFire SL · Front derailleur: Shimano Alivio top-swing, top-pull · Rear derailleur: Shimano STX-RC · Crankset: Cyclone 4 Rox, 22/34/42 teeth · Bottom bracket: Tien Hsin BB-7700, 110mm spindle · Rear cogs: 8-speed, 11 - 30 teeth · Chain: KMC IG-51, 1/2 x 3/32"

Archived: Brakes: SRAM ESP 7.0 brakes, Avid AD-1.0 L levers

Archived: Wheel size: 26" wheels · Rims: Sun Rims CR18, 32-hole · Hubs: Shimano Alivio · Front tire: 26 x 1.95" Kenda K-881

Controls and contact points

Archived: Headset: 1 1/8" threadless Ritchey Logic · Handlebar: 4 Rox alloy butted · Stem: Tahoma 4 Rox · Seatpost: Tahoma DP 310 · Saddle: Velo VL-1001 · Pedals: Victor VP-933A

Before and during the test ride

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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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