Velopedia Bicycle Archive

2021 Kona Process X

Original manufacturer specifications including 29" wheels, geometry for 4 published sizes.

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What Velopedia knows

Model year
2021
Category
Mountain
Original MSRP
$5,199.00
Sizes
S, M, L, XL
Colors
Gloss Metallic Black w/ Gold & Black Decals
Geometry
4 manufacturer sizes · Geometry context
Record coverage
24 preserved details · archived image · original MSRP · preserved geometry
Archive ID
900001971
Model history 2 other years
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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

SMLXL

Published colors

Gloss Metallic Black w/ Gold & Black Decals

Frameset

Frame ConstructionKona Carbon 161mm Travel
Frame MaterialCarbon Fiber
ForkFox 38 Performance Grip Damper 170mm
Rear ShockFox DPX2 Performance Elite Trunnion

Drivetrain

ShiftersShimano XT 12spd
Front Derailleurn/a
Rear DerailleurShimano XT 12spd
CranksetShimano Deore; Chainring: 32t
Bottom BracketShimano PF92
CassetteShimano SLX 10-51t 12spd
ChainShimano Deore 12spd
Pedalsn/a

Brakes

BrakesBrake Calipers: Shimano Deore 4 Piston; Front Brake Rotor: Shimano RT66 203mm; Rear Brake Rotor: Shimano RT66 203mm; Brake Levers: Shimano Deore

Cockpit & Contact Points

HeadsetFSA Orbit 1.5 EP ZS
HandlebarKona XC/BC 35
StemKona XC/BC 35
SaddleWTB Volt
SeatpostTranzX Dropper +RAD Internal w/ Shimano Lever 31.6mm

Wheels & Tires

Hubs(F) DT Swiss 370 110x15mm / (R) DT Swiss 370 148x12mm
RimsWTB KOM Trail i30 TCS
SpokesStainless Black 14g
Front TireMaxxis Assegai EXO+ TR 3C 29x2.5" WT
Rear TireMaxxis Minion DHR II EXO+ TR 3C 29x2.4" WT (27.5x2.4" WT size S)
Wheel Size29"

Size-specific frame data

Geometry

4 sizes · 15 measurements

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

MeasurementSMLXL
Seat tube380 mm380 mm420 mm450 mm
Top tube569 mm594 mm623 mm662 mm
Head tube94 mm94 mm105 mm116 mm
Head-tube angle63.5°63.5°63.5°63.5°
Seat-tube angle78.2°78.2°78°77.9°
Chainstay / rear center435 mm435 mm435 mm435 mm
Wheelbase1213 mm1238 mm1268 mm1308 mm
Bottom-bracket drop20 mm30 mm30 mm30 mm
Bottom-bracket height345 mm345 mm345 mm345 mm
Reach440 mm465 mm490 mm525 mm
Stack615 mm615 mm625 mm635 mm
Standover height690 mm700 mm710 mm720 mm
Fork offset / rake44 mm44 mm44 mm44 mm
Front center779 mm804 mm834 mm874 mm
Fork length / axle-to-crown581 mm581 mm581 mm581 mm

Geometry source: Kona first-party archive metric geometry table ↗ 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 geometry

Archive context: The seat angle of 78.2° sits toward the steeper end. Its wheelbase of 1213 mm sits toward the longer end. Its reach of 440 mm sits toward the longer end.

Compared with 86 distinct mountain geometries in the Small-equivalent size cohort from model years 2019–2023 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 geometry

Parts & serviceability

Find replacement parts

3 top part searches
ChainMatching configuration
Shimano Deore 12spd Interpreted as Shimano Deore · 12-speed Component family — verify exact version
CassetteMatching configuration
Shimano SLX 10-51t 12spd Interpreted as Shimano SLX · 12-speed Component family — verify exact version
Front tireMatching fit standard
Maxxis Assegai EXO+ TR 3C 29x2.5" WT Named tire and published size
More qualified parts (6)
Bottom bracketQualified part search
Shimano PF92 Named archived component — verify dimensions
SaddleQualified part search
WTB Volt Named archived component — verify exact version
CranksetQualified part search
Shimano Deore; Chainring: 32t Component family — verify exact version
Rear derailleurMatching configuration
Shimano XT 12spd Interpreted as Shimano Deore XT · 12-speed Component family — verify exact version Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
ShiftersOne check needed
Shimano XT 12spd Interpreted as Shimano Deore XT · 12-speed Component family — verify exact version Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
HeadsetQualified part search
FSA Orbit 1.5 EP ZS 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. Velopedia may also earn from qualifying retailer purchases. Commercial relationships do not influence Archive specifications or analysis.

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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 →
  • FrameInspect the frame in bright light, especially around the head tube, bottom bracket, chainstays and clamped areas. Look for cracks, ripples, crushed sections or signs of a previous impact.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 →
  • 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 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 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: 2021 Kona Process X · Mountain · Published sizes: S, M, L, XL

Archived: Frame: Kona Carbon 161mm Travel · Fork: Fox 38 Performance Grip Damper 170mm

Archived: Fork: Fox 38 Performance Grip Damper 170mm · Rear shock: Fox DPX2 Performance Elite Trunnion

Archived: Shifters: Shimano XT 12spd · Rear derailleur: Shimano XT 12spd · Crankset: Shimano Deore; Chainring: 32t · Bottom bracket: Shimano PF92 · Cassette: Shimano SLX 10-51t 12spd · Chain: Shimano Deore 12spd

Archived: Brakes: Brake Calipers: Shimano Deore 4 Piston; Front Brake Rotor: Shimano RT66 203mm; Rear Brake Rotor: Shimano RT66 203mm; Brake Levers: Shimano Deore

Archived: Wheel size: 29" · Rims: WTB KOM Trail i30 TCS · Hubs: (F) DT Swiss 370 110x15mm / (R) DT Swiss 370 148x12mm · Front tire: Maxxis Assegai EXO+ TR 3C 29x2.5" WT · Rear tire: Maxxis Minion DHR II EXO+ TR 3C 29x2.4" WT (27.5x2.4" WT size S)

Controls and contact points

Archived: Headset: FSA Orbit 1.5 EP ZS · Handlebar: Kona XC/BC 35 · Stem: Kona XC/BC 35 · Seatpost: TranzX Dropper +RAD Internal w/ Shimano Lever 31.6mm · 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.

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Recently checked marketplace data

Market Snapshot

Checked Sep 17, 2026 4:01 am

Velopedia did not find a close used eBay listing in the latest snapshot. New and used listings remain separate.

Evidence standard Fixed-price and Best Offer item prices only Shipping and tax excluded Active asks, not completed sales
No close current matches found. Velopedia did not find an eBay listing confident enough to include in the latest snapshot.

Listings shown have not passed their eBay-supplied end time. Velopedia rechecks matched bicycles on a protected weekly cycle; availability can still change between checks. Price calculations use active fixed-price and Best Offer item prices before shipping and tax. Auction bids, auction-only prices, classified ads, lower-confidence Review candidates and ended listings are excluded. These observations are not completed-sale prices, a certified appraisal or a guarantee of value.

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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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