
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
Frameset
| Frame Construction | Kona Carbon 161mm Travel |
|---|---|
| Frame Material | Carbon Fiber |
| Fork | Fox 38 Performance Grip Damper 170mm |
| Rear Shock | Fox DPX2 Performance Elite Trunnion |
Drivetrain
| Shifters | Shimano XT 12spd |
|---|---|
| Front Derailleur | n/a |
| Rear Derailleur | Shimano XT 12spd |
| Crankset | Shimano Deore; Chainring: 32t |
| Bottom Bracket | Shimano PF92 |
| Cassette | Shimano SLX 10-51t 12spd |
| Chain | Shimano Deore 12spd |
| Pedals | n/a |
Brakes
| Brakes | Brake Calipers: Shimano Deore 4 Piston; Front Brake Rotor: Shimano RT66 203mm; Rear Brake Rotor: Shimano RT66 203mm; Brake Levers: Shimano Deore |
|---|
Cockpit & Contact Points
| Headset | FSA Orbit 1.5 EP ZS |
|---|---|
| Handlebar | Kona XC/BC 35 |
| Stem | Kona XC/BC 35 |
| Saddle | WTB Volt |
| Seatpost | TranzX Dropper +RAD Internal w/ Shimano Lever 31.6mm |
Wheels & Tires
| Hubs | (F) DT Swiss 370 110x15mm / (R) DT Swiss 370 148x12mm |
|---|---|
| Rims | WTB KOM Trail i30 TCS |
| Spokes | Stainless Black 14g |
| 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) |
| Wheel Size | 29" |
Size-specific frame data
Geometry
Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.
| Measurement | S | M | L | XL |
|---|---|---|---|---|
| Seat tube | 380 mm | 380 mm | 420 mm | 450 mm |
| Top tube | 569 mm | 594 mm | 623 mm | 662 mm |
| Head tube | 94 mm | 94 mm | 105 mm | 116 mm |
| Head-tube angle | 63.5° | 63.5° | 63.5° | 63.5° |
| Seat-tube angle | 78.2° | 78.2° | 78° | 77.9° |
| Chainstay / rear center | 435 mm | 435 mm | 435 mm | 435 mm |
| Wheelbase | 1213 mm | 1238 mm | 1268 mm | 1308 mm |
| Bottom-bracket drop | 20 mm | 30 mm | 30 mm | 30 mm |
| Bottom-bracket height | 345 mm | 345 mm | 345 mm | 345 mm |
| Reach | 440 mm | 465 mm | 490 mm | 525 mm |
| Stack | 615 mm | 615 mm | 625 mm | 635 mm |
| Standover height | 690 mm | 700 mm | 710 mm | 720 mm |
| Fork offset / rake | 44 mm | 44 mm | 44 mm | 44 mm |
| Front center | 779 mm | 804 mm | 834 mm | 874 mm |
| Fork length / axle-to-crown | 581 mm | 581 mm | 581 mm | 581 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
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.M geometry
Archive context: The seat angle of 78.2° sits toward the steeper end. Its reach of 465 mm sits toward the longer end. Its wheelbase of 1238 mm sits toward the longer end.
Compared with 86 distinct mountain geometries in the Medium-equivalent size cohort from model years 2019–2023 in the Velopedia archive.L geometry
Archive context: The seat angle of 78° sits toward the steeper end. Its reach of 490 mm sits toward the longer end. Its wheelbase of 1268 mm sits toward the longer end.
Compared with 79 distinct mountain geometries in the Large-equivalent size cohort from model years 2019–2023 in the Velopedia archive.XL geometry
Archive context: Its reach of 525 mm sits toward the longer end. The seat angle of 77.9° sits toward the steeper end. Its wheelbase of 1308 mm sits toward the longer end.
Compared with 71 distinct mountain geometries in the XL-equivalent size cohort from model years 2019–2023 in the Velopedia archive.Parts & serviceability
Find replacement parts
More qualified parts (6)
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.
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
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.
Identity and fit
Follow the full used-bike inspection order →Archived: 2021 Kona Process X · Mountain · Published sizes: S, M, L, XL
Frame and fork
Inspect the frame and fork →Archived: Frame: Kona Carbon 161mm Travel · Fork: Fox 38 Performance Grip Damper 170mm
Suspension
Evaluate the suspension →Archived: Fork: Fox 38 Performance Grip Damper 170mm · Rear shock: Fox DPX2 Performance Elite Trunnion
Drivetrain
Check drivetrain wear →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
Brakes
Inspect the brakes →Archived: Brakes: Brake Calipers: Shimano Deore 4 Piston; Front Brake Rotor: Shimano RT66 203mm; Rear Brake Rotor: Shimano RT66 203mm; Brake Levers: Shimano Deore
Wheels and tires
Check wheels and tires →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
Velopedia did not find a close used eBay listing in the latest snapshot. New and used listings remain separate.
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.
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.




