Velopedia Bicycle Archive

2026 Jamis Faultline A2 MPX

Mountain bicycle from the Velopedia specification archive.

Share owner experience

Selling this bike? Create a Bike History Report

What Velopedia knows

Model year
2026
Category
Mountain
Original MSRP
$2,799.95
Sizes
S/15.5″, M/17″, L/19″, XL/21″
Colors
Olive Drab
Weight
34 lbs
Geometry
4 manufacturer sizes · Geometry context
Record coverage
21 preserved details · 3 archived images · original MSRP · preserved geometry
Archive ID
900001524
Campaign

Manufacturer catalog

Published sizes and colors

4 sizes · 1 color

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

Published sizes

S/15.5″M/17″L/19″XL/21″

Published colors

Olive Drab

Frameset

Frame ConstructionTriple-butted 6061 alloy, 125mm suspension travel, 1.5 – 1 1/8” tapered head tube,12x148mm thru-axle dropout, internal dropper post routing, ISCG05 chainguide mount, Rock Shox Deluxe Select+ RT, UDH derailleur hanger
Frame MaterialAluminum
ForkRock Shox Psylo Gold RC, 3-position compression, external rebound, 35mm stanchions, 15x110mm axle, 130mm travel

Drivetrain

Component GroupShimano Deore, 12-speed
ShiftersShimano Deore, 1×12-speed
Rear DerailleurShimano Deore, 12-speed
CranksetShimano Deore, 32T, 170mm
Bottom BracketShimano
CassetteShiamno Deore, 12-speed, 11-51T
ChainKMC X12, 12-speed

Brakes

BrakesTRP Slate EVO 4-piston hydraulic disc, 180mm rotors

Cockpit & Contact Points

HeadsetFSA Orbit 1.5 Zero-Stack internal cup, 8mm cone spacer
HandlebarRace Face Ride, 35 x 760mm
StemRace Face Ride , 35 x 50mm
SaddleWTB Volt
SeatpostKS Vantage Adjustable Travel Dropper 110-140mm travel Length: (S), 140-170mm travel Length: (M/L), 170-200mm travel Length: (XL), Westy 2.0 remote

Wheels & Tires

WheelsStan’s No Tubes Flow D rims, Novatec D041SB 15x110mm front & D462SB 12x148mm rear hubs, stainless spokes
Front TireVittoria Agarro 29×2.4″ Trail
Rear TireVittoria Agarro 29×2.4″ Trail
Wheel Size29

Size-specific frame data

Geometry

4 sizes · 10 measurements

Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.

MeasurementS/15.5″M/17″L/19″XL/21″
Effective top tube575 mm600 mm618 mm635 mm
Head tube105 mm110 mm120 mm130 mm
Head-tube angle66°66°66°66°
Seat-tube angle77°77°77°77°
Chainstay / rear center445 mm445 mm445 mm445 mm
Wheelbase1171 mm1208 mm1227 mm1241 mm
Bottom-bracket drop35 mm35 mm35 mm35 mm
Reach435 mm460 mm480 mm500 mm
Stack606 mm611 mm620 mm645 mm
Standover height716 mm716 mm717 mm717 mm

Geometry source: Jamis first-party geometry table (2026 GEO - FAULTLINE® MPX) ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.

Geometry tools

Analyze a published size

Choose a size

S/15.5″ geometry

Archive context: The chainstay of 445 mm sits toward the longer rear-center end. Its reach of 435 mm sits somewhat longer than typical. The seat angle of 77° sits somewhat steeper than typical.

Compared with 168 distinct mountain geometries in the Small-equivalent size cohort from model years 2024–2027 in the Velopedia archive.
Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze S/15.5″ geometry

Parts & serviceability

Find replacement parts

3 top part searches
ChainKMC X12, 12-speedExact archived model
Front tireVittoria Agarro 29x2.4″ TrailNamed tire and published size
SaddleWTB VoltNamed archived component — verify exact version
More qualified parts (6)
CranksetShimano Deore, 32T, 170mmComponent family — verify exact version
Rear derailleurShimano Deore, 12-speedComponent family — verify exact version
ShiftersShimano Deore, 1×12-speedComponent family — verify exact version
HandlebarRace Face Ride, 35 x 760mmNamed archived component — verify dimensions
StemRace Face Ride , 35 x 50mmNamed archived component — verify dimensions
HeadsetFSA Orbit 1.5 Zero-Stack internal cup, 8mm cone spacerNamed 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. Velopedia may also earn from qualifying retailer purchases. Commercial relationships do not influence Archive specifications or analysis.

Campaign

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 →
  • BrakesBoth levers should feel firm and return cleanly. Check for fluid around the levers and calipers, inspect pad thickness and contamination, and look for worn or bent rotors.Inspect the brakes →
  • SuspensionAsk when the fork was last serviced. Check the stanchions for damage, look for oil at the seals and make sure the fork moves smoothly without bushing 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 12-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 20 checks based on 6 archived component groups Open checklistClose checklist
0 of 20 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: 2026 Jamis Faultline A2 MPX · Mountain · Published sizes: S/15.5″, M/17″, L/19″, XL/21″

Archived: Frame: Triple-butted 6061 alloy, 125mm suspension travel, 1.5 – 1 1/8” tapered head tube,12x148mm thru-axle dropout, internal dropper post routing, ISCG05 chainguide mount, Rock Shox Deluxe Select+ RT, UDH derailleur hanger · Fork: Rock Shox Psylo Gold RC, 3-position compression, external rebound, 35mm stanchions, 15x110mm axle, 130mm travel

Archived: Fork: Rock Shox Psylo Gold RC, 3-position compression, external rebound, 35mm stanchions, 15x110mm axle, 130mm travel

Archived: Group: Shimano Deore, 12-speed · Shifters: Shimano Deore, 1×12-speed · Rear derailleur: Shimano Deore, 12-speed · Crankset: Shimano Deore, 32T, 170mm · Bottom bracket: Shimano · Cassette: Shiamno Deore, 12-speed, 11-51T · Chain: KMC X12, 12-speed

Archived: Brakes: TRP Slate EVO 4-piston hydraulic disc, 180mm rotors

Archived: Wheel size: 29 · Wheels: Stan’s No Tubes Flow D rims, Novatec D041SB 15x110mm front & D462SB 12x148mm rear hubs, stainless spokes · Front tire: Vittoria Agarro 29×2.4″ Trail · Rear tire: Vittoria Agarro 29×2.4″ Trail

Controls and contact points

Archived: Headset: FSA Orbit 1.5 Zero-Stack internal cup, 8mm cone spacer · Handlebar: Race Face Ride, 35 x 760mm · Stem: Race Face Ride , 35 x 50mm · Seatpost: KS Vantage Adjustable Travel Dropper 110-140mm travel Length: (S), 140-170mm travel Length: (M/L), 170-200mm travel Length: (XL), Westy 2.0 remote · Saddle: WTB Volt

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.

After submitting, use the verification link sent to your email. Nothing appears publicly until Velopedia approves it.

Already contributed? Send me a fresh private edit link

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

Gallery

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.

Campaign

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

Scroll to Top