Velopedia Bicycle Archive

1998 Jamis Eureka

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

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At a glance

Archive #72268
Model year
1998
Category
Mountain
Original MSRP
$849.95
Sizes
12", 14", 17", 19", 21"
Colors
Ball-Burnished, Electric Blue
Geometry
Legacy reference
In this record
27 specifications · archived image · original MSRP · geometry
Model history 9 other years

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Identification clues

1998 archived details

Published colors
Ball-Burnished, Electric Blue
Frame
7005 aluminum
Original equipment
Shimano STX-RC

Clues, not proof of model year. Colors vary and components may have been replaced.

Campaign
Original build7005 aluminum · Shimano STX-RC · 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"14"17"19"21"

Published colors

Ball-BurnishedElectric Blue

Frameset

Frame ConstructionTIG-welded
Frame Material7005 aluminum
ForkAnswer Manitou Spyder R
Fork MaterialAluminum/magnesium, triple-clamp crown

Drivetrain

Component GroupShimano STX-RC
ShiftersShimano STX-RC RapidFire SL
Front DerailleurShimano STX-RC top-swing, top-pull/clamp-on 31.8mm
Rear DerailleurShimano STX-RC
CranksetShimano STX-RC, 24/34/42 teeth
Bottom BracketShimano BB-LP26, 110mm spindle
BB Shell Width68mm English
Rear Cogs8-speed, 11 - 30 teeth
ChainShimano CN-IG51, 1/2 x 3/32"
PedalsWellgo w/clips & straps

Brakes

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

Cockpit & Contact Points

Headset1 1/8" Aheadset STS
HandlebarKalloy Riser 6061 butted
Handlebar ExtensionsNot included
StemJamis Flip-Flop
SaddleJamis Comp
SeatpostKalloy aluminum micro-adjust, 27.0mm diameter

Wheels & Tires

HubsFront: Formula aluminum, Q/R, Rear: Shimano STX-RC
RimsSun Rims CR18, 32-hole
SpokesStainless steel, 2.0mm straight gauge
Spoke NipplesAlloy nipples
Front Tire26 x 2.20" WTB Primal Raptor
Wheel Size26" wheels

Geometry

Legacy reference · 6 measurements

Historical measurements. Frame size unknown.

All geometry measurementsLegacy reference · 6 measurements
MeasurementLegacy reference
Top tube578 mm
Head-tube angle71°
Seat-tube angle73.5°
Chainstay / rear center425 mm
Wheelbase1055 mm
Fork offset / rake40.6 mm

Frame size not recorded.

Gearing

Lower gears help on climbs. Higher gears suit higher speeds.

RPM

RPM = pedal turns per minute.

All published sizes42/34/24T · 11–30T · 8-speed
Lowest0.80:1 Highest3.82:1 Total range477%
Estimated speed At 90 RPM Lowest gear5.7 mph Highest gear27.0 mph

Uses front tire 26×2.2; rear size isn’t listed.

How it works

Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.

Speeds are estimates from tire size and pedal cadence. Actual speeds vary.

Try other gearing

Try your current gearingChanged tires or gears? Calculate your setup.

Your changes apply to this calculation. The archived build stays unchanged.

Your gearing setup
Gears

Use up to three front tooth counts, separated by /. For one rear sprocket, enter the same count twice.

Rear tire

Apply the marking on your rear tire or edit its dimensions below. Older or fractional inch sizes need the ISO marking (e.g. 37-590).

For 32-622, width is 32 mm and rim diameter is 622 mm. Use the rear tire on mixed-wheel bikes. Leave both fields empty to compare ratios only.

Gear, dimension and cadence changes update results automatically.

Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.

Parts & serviceability

Find replacement parts

Original specifications
Chain · Original
Shimano CN-IG51

1/2 x 3/32"

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Retailer offers
Front tire · Original
26 x 2.20" WTB Primal Raptor
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Retailer offers
Brake pads · Original
Shimano STX-RC V-Brake brakes

Shimano STX-RC levers

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More parts (6)Fewer parts
Bottom bracket · Original
Shimano BB-LP26

110mm spindle

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Pedals · Original
Wellgo w/clips & straps
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Crankset · Original
Shimano STX-RC

24/34/42 teeth

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Rear derailleur · Original
Shimano STX-RC
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Shifters · Original
Shimano STX-RC RapidFire SL
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Seatpost · Original
Kalloy aluminum micro-adjust

27.0mm diameter

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Parts and service referenceQuick reference before buying parts

Archived specifications for reference. Check the fitted parts before ordering.

Front tire
26 x 2.20" WTB Primal Raptor
Drivetrain
8-speed
Seatpost diameter
27 mm
Bottom bracket / shell
Shimano BB-LP26, 110mm spindle · 68mm English
Equipment inspection checks 11 checks based on 6 archived component groups Open equipment checksClose equipment checks
0 of 11 checked Progress stays in this browser for this record.

Checks selected from the archived equipment. Confirm what is fitted today. This is not a complete safety inspection; use the full inspection guide before test riding.

Full used-bike inspection guide →

Frame and fork

Inspect the frame and fork →

Archived: Frame: TIG-welded · Fork: Answer Manitou Spyder R · Aluminum/magnesium, triple-clamp crown

Suspension

Evaluate the suspension →

Archived: Fork: Answer Manitou Spyder R

Drivetrain

Check drivetrain wear →

Archived: Group: Shimano STX-RC · Shifters: Shimano STX-RC RapidFire SL · Front derailleur: Shimano STX-RC top-swing, top-pull/clamp-on 31.8mm · Rear derailleur: Shimano STX-RC · Crankset: Shimano STX-RC, 24/34/42 teeth · Bottom bracket: Shimano BB-LP26, 110mm spindle · Rear cogs: 8-speed, 11 - 30 teeth · Chain: Shimano CN-IG51, 1/2 x 3/32"

Brakes

Inspect the brakes →

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

Wheels and tires

Check wheels and tires →

Archived: Wheel size: 26" wheels · Rims: Sun Rims CR18, 32-hole · Hubs: Front: Formula aluminum, Q/R, Rear: Shimano STX-RC · Front tire: 26 x 2.20" WTB Primal Raptor

Controls and contact points

Archived: Headset: 1 1/8" Aheadset STS · Handlebar: Kalloy Riser 6061 butted · Stem: Jamis Flip-Flop · Seatpost: Kalloy aluminum micro-adjust, 27.0mm diameter · Saddle: Jamis Comp · Pedals: Wellgo 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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