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1998 Kestrel CS-X (03)

Original specifications: Shimano STX-RC drivetrain · 26" wheels · legacy reference geometry.

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At a glance

Model year
1998
Category
Mountain
Original MSRP
$1,499.00
Sizes
17", 19", 21"
Colors
Deep Purple, Orange-Orange
Geometry
Legacy reference
In this record
27 specifications · original MSRP · geometry
Archive ID
75784
Model history 1 other year
Original buildCarbon fiber composite · Shimano STX-RC · 26" wheels

Manufacturer catalog

Published sizes and colors

3 sizes · 2 colors

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

Published sizes

17"19"21"

Published colors

Deep PurpleOrange-Orange

Frameset

Frame ConstructionMonocoque
Frame MaterialCarbon fiber composite
ForkRock Shox Indy C
Fork MaterialAluminum/magnesium, triple-clamp crown

Drivetrain

Component GroupShimano STX-RC
ShiftersShimano STX-RC RapidFire SL
Front DerailleurShimano Deore XT, top-pull/clamp-on 35.0mm
Rear DerailleurShimano STX-RC
CranksetShimano STX-RC, 22/32/42 teeth
Bottom BracketShimano BB-UN52, 107mm spindle
BB Shell Width68mm English
Rear Cogs8-speed, 12 - 28 teeth
ChainShimano CN-HG70, 1/2 x 3/32"
PedalsNot included

Brakes

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

Cockpit & Contact Points

Headset1 1/8" threadless Shimano STX
HandlebarSyncros Hardcore
Handlebar ExtensionsNot included
StemRitchey ForceLite
SaddleBontrager
SeatpostRitchey Expert, 27.2mm diameter

Wheels & Tires

HubsShimano STX-RC
RimsMavic 238, 32-hole
SpokesWheelsmith stainless steel, 2.0mm double-butted
Spoke NipplesAlloy nipples
Front Tire26 x 1.95" WTB VelociRaptor 44/50 kevlar
Wheel Size26" wheels

Geometry

Legacy reference · 6 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 Use these as a historical reference, not for size-specific fit.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 · 6 measurements
MeasurementLegacy reference
Top tube579.1 mm
Head-tube angle71°
Seat-tube angle73°
Chainstay / rear center429.3 mm
Wheelbase1059.2 mm
Fork offset / rake40.6 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 · 12–28T · 8-speed
Lowest0.79:1 Highest3.50:1 Total range445%
Estimated speed Lowest gear5.5 mph Highest gear24.3 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.

Bike-specific inspection checklist 21 checks based on 6 archived component groups Open checklistClose checklist
0 of 21 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: 1998 Kestrel CS-X (03) · Mountain bike, front suspension · Published sizes: 17", 19", 21"

Archived: Frame: Monocoque · Fork: Rock Shox Indy C · Aluminum/magnesium, triple-clamp crown

Archived: Fork: Rock Shox Indy C

Archived: Group: Shimano STX-RC · Shifters: Shimano STX-RC RapidFire SL · Front derailleur: Shimano Deore XT, top-pull/clamp-on 35.0mm · Rear derailleur: Shimano STX-RC · Crankset: Shimano STX-RC, 22/32/42 teeth · Bottom bracket: Shimano BB-UN52, 107mm spindle · Rear cogs: 8-speed, 12 - 28 teeth · Chain: Shimano CN-HG70, 1/2 x 3/32"

Archived: Brakes: Shimano Deore LX V-Brake brakes, Shimano STX-RC levers

Archived: Wheel size: 26" wheels · Rims: Mavic 238, 32-hole · Hubs: Shimano STX-RC · Front tire: 26 x 1.95" WTB VelociRaptor 44/50 kevlar

Controls and contact points

Archived: Headset: 1 1/8" threadless Shimano STX · Handlebar: Syncros Hardcore · Stem: Ritchey ForceLite · Seatpost: Ritchey Expert, 27.2mm diameter · Saddle: Bontrager · Pedals: Not included

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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