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1998 Kestrel KM40

Original specifications: Shimano Dura-Ace drivetrain · 650c wheels · legacy reference geometry.

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At a glance

Model year
1998
Category
Road
Original MSRP
$3,099.00
Sizes
56 cm
Colors
Black, Deep Purple, Kona Blue, Mango Yellow, Race Red, White
Geometry
Legacy reference
In this record
27 specifications · archived image · original MSRP · geometry
Archive ID
73171
Original buildCarbon fiber composite · Shimano Dura-Ace · 650c wheels

Manufacturer catalog

Published sizes and colors

1 size · 6 colors

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

Published sizes

56 cm

Published colors

BlackDeep PurpleKona BlueMango YellowRace RedWhite
+ 0 more colors + 2 more colors
Race RedWhite

Frameset

Frame ConstructionMonocoque
Frame MaterialCarbon fiber composite
ForkKestrel EMS
Fork MaterialCarbon fiber composite, aero crown

Drivetrain

Component GroupShimano Dura-Ace
ShiftersShimano Dura-Ace bar-end
Front DerailleurShimano Dura-Ace, braze-on
Rear DerailleurShimano Dura-Ace
CranksetSyncros, 42/56 teeth
Bottom BracketShimano BB-UN72, 112.5mm spindle
BB Shell Width68mm English
Rear Cogs9-speed, 11 - 23 teeth
ChainShimano CN-7700, 1/2 x 3/32"
PedalsNot included

Brakes

BrakesDia-Compe BRS 200 SL brakes, Dia-Compe 188 TRI levers

Cockpit & Contact Points

Headset1" Stronglight A9
HandlebarProfile AirWings
Handlebar ExtensionsProfile Split Second
StemProfile H20
SaddleSelle Italia Flite
SeatpostAmerican Classic, 27.2mm diameter

Wheels & Tires

HubsShimano Dura-Ace
RimsMavic CXP 12, 28-hole
SpokesWheelsmith stainless steel, 2.0mm double-butted
Spoke NipplesAlloy nipples
Front Tire650 x 20c Continental Grand Prix kevlar
Wheel Size650c 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 Use these as a historical reference, not for size-specific fit.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 tube570 mm
Head-tube angle72.75°
Seat-tube angle76°
Chainstay / rear center390 mm
Wheelbase1012 mm
Fork offset / rake34 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 build56/42T · 11–23T · 9-speed
Lowest1.83:1 Highest5.09:1 Total range279%
Estimated speed Lowest gear11.8 mph Highest gear32.8 mph

Estimate uses the published front tire 650C×20 · nominal 20-571 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 19 checks based on 5 archived component groups Open checklistClose checklist
0 of 19 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 KM40 · Road race & triathlon · Published sizes: 56 cm

Archived: Frame: Monocoque · Fork: Kestrel EMS · Carbon fiber composite, aero crown

Archived: Group: Shimano Dura-Ace · Shifters: Shimano Dura-Ace bar-end · Front derailleur: Shimano Dura-Ace, braze-on · Rear derailleur: Shimano Dura-Ace · Crankset: Syncros, 42/56 teeth · Bottom bracket: Shimano BB-UN72, 112.5mm spindle · Rear cogs: 9-speed, 11 - 23 teeth · Chain: Shimano CN-7700, 1/2 x 3/32"

Archived: Brakes: Dia-Compe BRS 200 SL brakes, Dia-Compe 188 TRI levers

Archived: Wheel size: 650c wheels · Rims: Mavic CXP 12, 28-hole · Hubs: Shimano Dura-Ace · Front tire: 650 x 20c Continental Grand Prix kevlar

Controls and contact points

Archived: Headset: 1" Stronglight A9 · Handlebar: Profile AirWings · Stem: Profile H20 · Seatpost: American Classic, 27.2mm diameter · Saddle: Selle Italia Flite · 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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