Velopedia Bicycle Archive
2026 Kona Ouroboros CR
Cyclocross/Gravel bicycle from the Velopedia specification archive.
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What Velopedia knows
- Model year
- 2026
- Category
- Gravel & Cyclocross
- Original MSRP
- $3,799.00
- Sizes
- 48, 50, 52, 54, 56, 58
- Colors
- Matte Carbon w/ Gloss Orchid Fade Decals
- Geometry
- 6 manufacturer sizes · Geometry context
- Record coverage
- 23 preserved details · 8 archived images · original MSRP · preserved geometry
- Archive ID
- 900000986
Model history 1 other year
Frameset
| Frame Construction | Kona Carbon |
|---|---|
| Frame Material | Carbon Fiber |
| Fork | Fox AX32 GRIP damper/ 40mm travel / Tapered / 12x100mm |
| Rear Shock | n/a |
Drivetrain
| Shifters | Shimano GRX 820 |
|---|---|
| Front Derailleur | n/a |
| Rear Derailleur | Shimano RDRX822 |
| Crankset | Shimano GRX 820 40t / Length 48-52 170mm / 52-54 172.5mm / 56-58 175mm |
| Bottom Bracket | Shimano PF86.5 |
| Cassette | Shimano Deore M6100 10-51t 12spd |
| Chain | Shimano Deore M6100 |
| Pedals | n/a |
Brakes
| Brakes | Brake Calipers: Shimano GRX 820; Front Brake Rotor: Shimano RT56 180mm 6B; Rear Brake Rotor: Shimano RT56 180mm 6B; Brake Levers: Shimano GRX 820 |
|---|
Cockpit & Contact Points
| Headset | FSA Orbit No.57 ZS44/ZS56 |
|---|---|
| Handlebar | Kona Gravel Dropbar 31.8mm / Width 48 440mm / 50 460mm / 52-54 480mm / 56 500mm / 58 520mm |
| Stem | Kona 31.8mm / Rise 6º / Length 48-52 50mm / 54-58 60mm |
| Saddle | WTB Volt Medium |
| Seatpost | TranzX Dropper +RAD 31.6mm 125mm |
Wheels & Tires
| Hubs | (F) Formula 12x100mm / (R) Formula 12x142mm MS |
|---|---|
| Rims | WTB KOM Team i27 TCS 29" |
| Spokes | Stainless 2.0mm Black |
| Front Tire | WTB Resolute TCS Light 700x50mm |
| Rear Tire | WTB Resolute TCS Light 700x50mm |
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 | 48 | 50 | 52 | 54 | 56 | 58 |
|---|---|---|---|---|---|---|
| Seat tube | 410 mm | 410 mm | 455 mm | 455 mm | 500 mm | 535 mm |
| Top tube | 532 mm | 547 mm | 559 mm | 578 mm | 595 mm | 616 mm |
| Head tube | 116 mm | 132 mm | 148 mm | 172 mm | 193 mm | 225 mm |
| Head-tube angle | 68.7° | 68.7° | 68.7° | 68.7° | 68.7° | 68.7° |
| Seat-tube angle | 74.2° | 73.7° | 73.2° | 72.7° | 72.2° | 71.7° |
| Chainstay / rear center | 445 mm | 445 mm | 445 mm | 445 mm | 445 mm | 445 mm |
| Wheelbase | 1060 mm | 1071 mm | 1082 mm | 1096 mm | 1108 mm | 1124 mm |
| Bottom-bracket drop | 69 mm | 69 mm | 69 mm | 66 mm | 66 mm | 66 mm |
| Bottom-bracket height | 296 mm | 296 mm | 296 mm | 299 mm | 299 mm | 299 mm |
| Reach | 372 mm | 377 mm | 382 mm | 386 mm | 391 mm | 396 mm |
| Stack | 566 mm | 581 mm | 598 mm | 616 mm | 636 mm | 666 mm |
| Standover height | 725 mm | 730 mm | 769 mm | 777 mm | 814 mm | 848 mm |
| Fork offset / rake | 51 mm | 51 mm | 51 mm | 51 mm | 51 mm | 51 mm |
| Front center | 624 mm | 635 mm | 646 mm | 659 mm | 671 mm | 687 mm |
| Fork length / axle-to-crown | 435 mm | 435 mm | 435 mm | 435 mm | 435 mm | 435 mm |
Geometry source: Manufacturer HTML geometry table ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.
Geometry tools
Analyze a published size
48 geometry
Archive context: The head angle of 68.7° sits toward the slacker end. The chainstay of 445 mm sits toward the longer rear-center end. Its bottom-bracket drop of 69 mm sits toward the shallower-drop end.
Compared with 79 distinct cyclocross/gravel 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 48 geometry 50 geometry
Archive context: The head angle of 68.7° sits toward the slacker end. Its wheelbase of 1071 mm sits toward the longer end. Its stack of 581 mm sits toward the taller end.
Compared with 79 distinct cyclocross/gravel 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 50 geometry 52 geometry
Archive context: The head angle of 68.7° sits toward the slacker end. The chainstay of 445 mm sits toward the longer rear-center end. Its bottom-bracket drop of 69 mm sits toward the shallower-drop end.
Compared with 91 distinct cyclocross/gravel geometries in the Medium-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 52 geometry 54 geometry
Archive context: The seat angle of 72.7° sits toward the more relaxed end. The head angle of 68.7° sits toward the slacker end. Its bottom-bracket drop of 66 mm sits toward the shallower-drop end.
Compared with 91 distinct cyclocross/gravel geometries in the Medium-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 54 geometry 56 geometry
Archive context: The seat angle of 72.2° sits toward the more relaxed end. The head angle of 68.7° sits toward the slacker end. Its bottom-bracket drop of 66 mm sits toward the shallower-drop end.
Compared with 64 distinct cyclocross/gravel geometries in the Large-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 56 geometry 58 geometry
Archive context: The seat angle of 71.7° sits toward the more relaxed end. The head angle of 68.7° sits toward the slacker end. Its stack of 666 mm sits toward the taller end.
Compared with 70 distinct cyclocross/gravel geometries in the XL-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 58 geometry Parts & serviceability
Find replacement parts
ChainShimano Deore M6100Exact archived model
CassetteShimano Deore M6100 10-51t 12spdExact archived model
Bottom bracketShimano PF86.5Named archived component — verify dimensions
More qualified parts (4)
SaddleWTB Volt MediumNamed archived component — verify exact version
ShiftersShimano GRX 820Named component · published drivetrain speed — verify exact version
Seatpost31.6 mm dropper postDropper post identified — verify travel, routing and insertion depth
RimsWTB KOM Team i27 TCS 29"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.
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 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
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: 2026 Kona Ouroboros CR · Cyclocross/Gravel · Published sizes: 48, 50, 52, 54, 56, 58
Frame and fork
Inspect the frame and fork →Archived: Frame: Kona Carbon · Fork: Fox AX32 GRIP damper/ 40mm travel / Tapered / 12x100mm
Suspension
Evaluate the suspension →Archived: Fork: Fox AX32 GRIP damper/ 40mm travel / Tapered / 12x100mm
Drivetrain
Check drivetrain wear →Archived: Shifters: Shimano GRX 820 · Rear derailleur: Shimano RDRX822 · Crankset: Shimano GRX 820 40t / Length 48-52 170mm / 52-54 172.5mm / 56-58 175mm · Bottom bracket: Shimano PF86.5 · Cassette: Shimano Deore M6100 10-51t 12spd · Chain: Shimano Deore M6100
Brakes
Inspect the brakes →Archived: Brakes: Brake Calipers: Shimano GRX 820; Front Brake Rotor: Shimano RT56 180mm 6B; Rear Brake Rotor: Shimano RT56 180mm 6B; Brake Levers: Shimano GRX 820
Wheels and tires
Check wheels and tires →Archived: Rims: WTB KOM Team i27 TCS 29" · Hubs: (F) Formula 12x100mm / (R) Formula 12x142mm MS · Front tire: WTB Resolute TCS Light 700x50mm · Rear tire: WTB Resolute TCS Light 700x50mm
Controls and contact points
Archived: Headset: FSA Orbit No.57 ZS44/ZS56 · Handlebar: Kona Gravel Dropbar 31.8mm / Width 48 440mm / 50 460mm / 52-54 480mm / 56 500mm / 58 520mm · Stem: Kona 31.8mm / Rise 6º / Length 48-52 50mm / 54-58 60mm · Seatpost: TranzX Dropper +RAD 31.6mm 125mm · Saddle: WTB Volt Medium
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.