Velopedia Bicycle Archive

1998 Klein Mantra Race LT

Original manufacturer specifications including Shimano Deore XT drivetrain, 26" wheels, 28.9 lb published weight.

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What Velopedia knows

Model year
1998
Category
Mountain
Original MSRP
$2,599.00
Sizes
S, M, L
Colors
Koi w/black swingarm
Weight
28.9 lb
Geometry
Legacy reference · Geometry context
Record coverage
33 preserved details · archived image · original MSRP · preserved geometry
Archive ID
74750

Manufacturer catalog

Published sizes and colors

3 sizes · 1 color

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

Published sizes

SML

Published colors

Koi w/black swingarm

Frameset

Frame ConstructionTIG-welded
Frame MaterialKlein Gradient aluminum
ForkAnswer Manitou X-Vert
Fork MaterialAluminum/magnesium, triple-clamp crown
Rear ShockFox Alps-5R, 5.5" travel

Drivetrain

Component GroupShimano Deore XT
ShiftersShimano Deore XT RapidFire SL
Front DerailleurShimano Deore XT top-swing, bottom-pull
Rear DerailleurShimano XTR SGS
CranksetShimano Deore XT, 22/32/42 teeth
Bottom BracketShimano BB-UN72, 113mm spindle
BB Shell Width73mm English
Rear Cogs8-speed, 11 - 30 teeth
ChainSachs PC-51, 1/2 x 3/32"
PedalsTime ATAC Carbon

Brakes

BrakesHayes disk front/Shimano Deore XT V-Brake rear brakes, Hayes disk front, Shimano Deore XT rear levers

Cockpit & Contact Points

Headset1 1/8" threadless WTB grease guard
HandlebarICON Diesel DH
Handlebar ExtensionsNot included
StemIcon
SaddleBontrager FS Plus 10
SeatpostThomson Elite, 31.6mm diameter

Wheels & Tires

HubsFront: Hayes disk, Rear: Shimano Deore XT
RimsBontrager Mustang Asym, 32-hole
SpokesDT stainless steel, 2.0mm double-butted
Spoke NipplesAlloy nipples
Front TireFront: 26 x 2.10" Bontrager Jones kevlar, Rear: 26 x 46/50" Bontrager Jones kevlar
Wheel Size26" wheels

Historical reference geometry

Geometry

Legacy reference · 6 measurements

Historical model-level geometry recovered from Velopedia’s original archive database. The source does not identify which listed frame size this reference describes, so fit interpretation is intentionally limited and no size-normalized Archive Context is generated.

MeasurementLegacy reference
Top tube590 mm
Head-tube angle70.8°
Seat-tube angle63.3°
Chainstay / rear center417 mm
Wheelbase1030 mm
Fork offset / rake40.6 mm

Geometry source: Historical archive database — model-level reference geometry. The historical source provides one model-level geometry set and does not identify the corresponding frame size.

Geometry tools

Explore this historical geometry

Model-level historical reference

Period context: At 70.8°, the head angle sits somewhat slacker than typical among mountain geometries represented in Velopedia for this period. Its 63.3° seat angle is toward the more relaxed end among the same-period mountain references.

Compared with 1362 distinct legacy mountain geometries from model years 1996–2000. Only angular measurements are used because the historical reference frame size is unidentified.
See it in periodOpen an immediate comparison with preserved 1998 mountain geometries. The source frame size remains unidentified.
See its 1998 geometry context

Parts & serviceability

Find replacement parts

3 top part searches
Bottom bracketExact archived part
Shimano BB-UN72, 113mm spindle Exact archived model
SaddleQualified part search
Bontrager FS Plus 10 Named archived component — verify exact version
CranksetQualified part search
Shimano Deore XT, 22/32/42 teeth Named archived component — verify exact version
More qualified parts (5)
Front derailleurMatching configuration
Shimano Deore XT top-swing, bottom-pull Interpreted as Shimano Deore XT · 8-speed · mechanical Named component · published drivetrain speed — verify exact version
Rear derailleurMatching configuration
Shimano XTR SGS Interpreted as Shimano XTR · 8-speed · mechanical Named component · published drivetrain speed — verify exact version
ShiftersQualified part search
Shimano Deore XT RapidFire SL Interpreted as Shimano Deore XT · 8-speed · mechanical Named component · published drivetrain speed — verify exact version
SeatpostQualified part search
Thomson Elite, 31.6mm diameter Named archived component — verify dimensions
RimsQualified part search
Bontrager Mustang Asym, 32-hole Named archived component — verify dimensions

Searches use the archived manufacturer specification, not the components currently installed on a particular bicycle. Confirm the exact model, size and fit before ordering. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Commercial relationships do not influence Archive specifications or analysis.

Used-bike inspection

If you’re buying this bike used

Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.

Follow the full used-bike inspection order →
  • FrameLook closely for dents and hairline cracks around welds, the head tube and bottom-bracket area. Cosmetic scratches matter less than a change in shape or a crack line.Inspect the frame and fork →
  • BrakesInspect pad condition, cable movement and the rim sidewalls or brake tracks for wear. A concave or heavily worn braking surface can mean the wheel also needs replacement.Inspect the brakes →
  • SuspensionAsk when the fork and shock were last serviced. Check the stanchions for damage, look for oil at the seals, cycle both units through their travel and test the suspension pivots for play.Evaluate the suspension →
  • DrivetrainShift through every gear under light load and measure chain wear. Confirm that the shifter, derailleur, chain and cassette belong to the same 8-speed system.Check drivetrain wear →
  • Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads.Check wheels and tires →
Bike-specific inspection checklist 22 checks based on 6 archived component groups Open checklistClose checklist
0 of 22 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 Klein Mantra Race LT · Mountain bike, front & rear suspension · Published sizes: S, M, L

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

Archived: Fork: Answer Manitou X-Vert · Rear shock: Fox Alps-5R, 5.5" travel

Archived: Group: Shimano Deore XT · Shifters: Shimano Deore XT RapidFire SL · Front derailleur: Shimano Deore XT top-swing, bottom-pull · Rear derailleur: Shimano XTR SGS · Crankset: Shimano Deore XT, 22/32/42 teeth · Bottom bracket: Shimano BB-UN72, 113mm spindle · Rear cogs: 8-speed, 11 - 30 teeth · Chain: Sachs PC-51, 1/2 x 3/32"

Archived: Brakes: Hayes disk front/Shimano Deore XT V-Brake rear brakes, Hayes disk front, Shimano Deore XT rear levers

Archived: Wheel size: 26" wheels · Rims: Bontrager Mustang Asym, 32-hole · Hubs: Front: Hayes disk, Rear: Shimano Deore XT · Front tire: Front: 26 x 2.10" Bontrager Jones kevlar, Rear: 26 x 46/50" Bontrager Jones kevlar

Controls and contact points

Archived: Headset: 1 1/8" threadless WTB grease guard · Handlebar: ICON Diesel DH · Stem: ICON · Seatpost: Thomson Elite, 31.6mm diameter · Saddle: Bontrager FS Plus 10 · Pedals: Time ATAC Carbon

Before and during the test ride

Follow the full used-bike inspection order →

Build relationships are limited to the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.

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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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