Velopedia Bicycle Archive

1998 Jamis Explorer

Original manufacturer specifications including Mountain Mix drivetrain, 26" wheels, geometry for 1 published size.

Share owner experience

Selling this bike? Create a shareable bike record

What Velopedia knows

Model year
1998
Category
Mountain
Original MSRP
$239.95
Sizes
14.5", 16", 17.5", 19.5", 21.5", womens 16", womens 19"
Colors
Flame Red, Gloss Black
Geometry
Legacy reference · Geometry context
Record coverage
32 preserved details · archived image · original MSRP · preserved geometry
Archive ID
71518
Model history 3 other years

Manufacturer catalog

Published sizes and colors

7 sizes · 2 colors

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

Published sizes

14.5"16"17.5"19.5"21.5"womens 16"womens 19"

Published colors

Flame RedGloss Black

Frameset

Frame ConstructionTIG-welded
Frame MaterialHi-tensile steel
ForkJamis
Fork MaterialHi-tensile steel, unicrown crown
Rear ShockN/A

Drivetrain

Component GroupMountain Mix
ShiftersGrip Shift MRX-170
Front DerailleurShimano Tourney TY-22 top-swing, top-pull/clamp-on 28.6mm
Rear DerailleurShimano Tourney TY-22
CranksetSR XR11, 28/38/48 teeth
Bottom BracketChin Haur CH-48, 118mm spindle
BB Shell Width68mm English
Rear Cogs7-speed, 14 - 28 teeth
ChainKMC Z-51, 1/2 x 3/32"
PedalsWellgo

Brakes

BrakesShimano Altus brakes, GS-1 alloy levers

Cockpit & Contact Points

Headset1 1/8" Chin Haur CH90
HandlebarHsin Lung steel
Handlebar ExtensionsNot included
StemJamis
SaddleJamis Sport
SeatpostPillar, steel, 26.8mm diameter

Wheels & Tires

HubsFront: aluminum, Q/R, Rear: aluminum, nutted
RimsWeinmann 519, 36-hole
SpokesStainless steel, 2.0mm straight gauge
Spoke NipplesBrass nipples
Front Tire26 x 1.95" Kenda K-850
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Historical reference geometry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 tube560 mm
Head-tube angle70.5°
Seat-tube angle72.5°
Chainstay / rear center430 mm
Wheelbase1050 mm
Fork offset / rake50 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 70.5°, the head angle sits somewhat slacker than typical among mountain geometries represented in Velopedia for this period. Its 72.5° 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
ChainExact archived part
KMC Z-51, 1/2 x 3/32" Exact archived model
Rear derailleurMatching configuration
Shimano Tourney TY-22 Interpreted as Shimano Tourney · 7-speed · mechanical Named component · published drivetrain speed — verify exact version
SeatpostMatching fit standard
26.8 mm seatpost Published diameter — verify length and setback

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 →
  • FrameCheck paint chips, vent holes and the inside of the seat tube for corrosion. Also look for dents, bent tubes and cracking around welded or brazed joints.Inspect the frame and fork →
  • BrakesTest each brake separately and confirm it stops firmly and releases cleanly. Inspect the pads and braking surfaces for wear or contamination, and check the cables or hoses for damage.Inspect the brakes →
  • DrivetrainShift through every gear under light load and measure chain wear. Confirm that the shifter, derailleur, chain and cassette belong to the same 7-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 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 Jamis Explorer · Mountain bike, non-suspension · Published sizes: 14.5", 16", 17.5", 19.5", 21.5", womens 16", womens 19"

Archived: Frame: TIG-welded · Fork: Jamis · Hi-tensile steel, unicrown crown

Archived: Group: Mountain Mix · Shifters: Grip Shift MRX-170 · Front derailleur: Shimano Tourney TY-22 top-swing, top-pull/clamp-on 28.6mm · Rear derailleur: Shimano Tourney TY-22 · Crankset: SR XR11, 28/38/48 teeth · Bottom bracket: Chin Haur CH-48, 118mm spindle · Rear cogs: 7-speed, 14 - 28 teeth · Chain: KMC Z-51, 1/2 x 3/32"

Archived: Brakes: Shimano Altus brakes, GS-1 alloy levers

Archived: Wheel size: 26" wheels · Rims: Weinmann 519, 36-hole · Hubs: Front: aluminum, Q/R, Rear: aluminum, nutted · Front tire: 26 x 1.95" Kenda K-850

Controls and contact points

Archived: Headset: 1 1/8" Chin Haur CH90 · Handlebar: Hsin Lung steel · Stem: Jamis · Seatpost: Pillar, steel, 26.8mm diameter · Saddle: Jamis Sport · Pedals: Wellgo

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.

My Garage

Velopedia

Enter your email and Velopedia will send a private sign-in link. No password required.

Have you owned this bike?Help preserve its real-world history by sharing your owner experience.

Share the details that would help another rider understand how this model fits, rides and holds up over time. Velopedia reviews every contribution before publication.

Add fit, maintenance and buyer detailsOptional · five additional fields

Your contribution goes directly to Velopedia’s private review queue. We’ll email an optional confirmation link plus a private edit and withdrawal link, but you do not need to confirm your email before an administrator can review or approve the submission.

Already contributed? Send me a fresh private edit link

For privacy, Velopedia shows the same confirmation whether or not an experience exists.

Current market

Snapshot not yet available
Protected live updateReady after page interactionAutomated crawlers do not trigger marketplace requests.

Move, scroll, tap or type to start the protected update.

Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

Scroll to Top