Lowest0.76:1
Highest3.45:1
Total range455%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Rear tire: 700C×50.
Velopedia Bicycle Archive
2023 Kona Ouroboros CR
Original specifications: geometry for 6 published sizes.
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At a glance
Archive #900001001- Model year
- 2023
- Category
- Gravel & Cyclocross
- Original MSRP
- $2,999.00
- Sizes
- 48, 50, 52, 54, 56, 58
- Colors
- Gloss Metallic Blue w/ Metallic Silver Decals
- Geometry
- 6 manufacturer sizes
- In this record
- 20 specifications · 8 archived images · original MSRP · geometry
Model history 1 other year
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Identification clues
2023 archived details
- Published colors
- Gloss Metallic Blue w/ Metallic Silver Decals
- Frame
- Carbon Fiber
Clues, not proof of model year. Colors vary and components may have been replaced.
Original buildCarbon Fiber
Frameset
| Frame Construction | Kona Carbon |
|---|---|
| Frame Material | Carbon Fiber |
| Fork | Fox TC32 Performance GRIP damper, 40mm travel, Tapered, 100x12mm |
Drivetrain
| Shifters | SRAM Apex 12 |
|---|---|
| Rear Derailleur | SRAM Apex 12 Eagle |
| Crankset | SRAM Apex 1 DUB Wide; Chainring: SRAM Apex 38t AL direct mount |
| Bottom Bracket | SRAM Press-Fit 86.5 DUB Wide |
| Cassette | SRAM PG-1230 11-50t 12 speed |
| Chain | SRAM NX Eagle 12 speed |
Brakes
| Brakes | Brake Calipers: SRAM Apex Flat Mount Hydraulic; Front Brake Rotor: SRAM Centerline 6-bolt 180mm; Rear Brake Rotor: SRAM Centerline 6-bolt 180mm; Brake Levers: SRAM Apex 12 |
|---|
Cockpit & Contact Points
| Headset | FSA Orbit No. 57E, ZS 44/56 |
|---|---|
| Handlebar | Kona 20-degree flare, 48: 440mm; 50: 460mm; 52-54: 480mm; 56: 500mm; 58: 520mm |
| Stem | Kona 6-degree rise, 48-52: 40mm; 54-58: 50mm |
| Saddle | WTB Volt Medium Steel SL |
| Seatpost | TranzX Dropper +RAD Internal, 31.6mm, 125mm travel |
Wheels & Tires
| Hubs | (F) Formula 100 x 12 6-bolt / (R) Formula 142 x 12 6-bolt, 11sp Road freehub |
|---|---|
| Rims | WTB KOM Team i27 700c 32h |
| Spokes | Stainless Black 14g |
| Front Tire | Maxxis Ravager 700 x 50 TR EXO |
| Rear Tire | Maxxis Ravager 700 x 50 TR EXO |
No specifications match. Try a component name or clear your search.
Geometry
Frame measurements by size.
Frame diagram
Size
Measurement
Measurement
—
Select an available measurement to locate it on the frame.
All geometry measurements6 sizes · 15 measurements
| 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 |
Dimensions as recorded.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
How it works
Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.
Speeds are estimates from tire size and pedal cadence. Actual speeds vary.
Try your current gearingChanged tires or gears? Calculate your setup.
Your changes apply to this calculation. The archived build stays unchanged.
Gearing results
| Measure | Original | Your setup |
|---|---|---|
| Lowest ratio | — | — |
| Highest ratio | — | — |
| Total range | — | — |
| Lowest-gear speed | — | — |
| Highest-gear speed | — | — |
Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.
Parts & serviceability
Find replacement parts
SRAM NX Eagle 12 speed
Retailer offers
SRAM GX Eagle 12-Speed Chain Silver, 126 links
Replacement option
Maxxis Ravager 700 x 50 TR EXO
Retailer offers
Vittoria Terreno Mix G2.0 TNT Tubeless Tire Anthracite/Black, 700x50
700x50c
Replacement option
Maxxis Ravager on eBaySponsored links
SRAM Apex 12 Eagle
Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
Retailer offers
SRAM Apex Eagle 12-Speed Rear Derailleur Black, 52t Max
Specification match
More parts (8)Fewer parts
TranzX Dropper +RAD Internal
31.6mm, 125mm travel
Retailer offers
SDG Components Tellis V2 Dropper Post Black, 31.6mm, 125mm
Replacement option
SRAM Press-Fit 86.5 DUB Wide
WTB Volt Medium Steel SL
SRAM Apex 1 DUB Wide
Chainring: SRAM Apex 38t AL direct mount
SRAM Apex 12
Before ordering: Confirm whether the drivetrain is mechanical or electronic before ordering.
FSA Orbit No. 57E
ZS 44/56
WTB KOM Team i27 700c 32h
Based on the original build. Check fit and installed parts before ordering. Affiliate links may earn Velopedia a commission. As an Amazon Associate I earn from qualifying purchases.
Service essentialsQuick reference before buying parts
Archived specifications for reference. Check the fitted parts before ordering.
- Front tire
- Maxxis Ravager 700 x 50 TR EXOCheck: Verify the fitted tire’s size marking and rim type.
- Rear tire
- Maxxis Ravager 700 x 50 TR EXOCheck: Verify the rear size; it may differ from the front.
- Drivetrain
- 12-speedCheck: Match the installed drivetrain family, not just its speed count.
- Seatpost diameter
- 31.6 mmCheck: Read the post’s diameter marking; seat-clamp size differs.
- Bottom bracket / shell
- SRAM Press-Fit 86.5 DUB WideCheck: Verify shell type and width, crank interface, and spindle length or spacers.
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: 2023 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 TC32 Performance GRIP damper, 40mm travel, Tapered, 100x12mm
Suspension
Evaluate the suspension →Archived: Fork: Fox TC32 Performance GRIP damper, 40mm travel, Tapered, 100x12mm
Drivetrain
Check drivetrain wear →Archived: Shifters: SRAM Apex 12 · Rear derailleur: SRAM Apex 12 Eagle · Crankset: SRAM Apex 1 DUB Wide; Chainring: SRAM Apex 38t AL direct mount · Bottom bracket: SRAM Press-Fit 86.5 DUB Wide · Cassette: SRAM PG-1230 11-50t 12 speed · Chain: SRAM NX Eagle 12 speed
Brakes
Inspect the brakes →Archived: Brakes: Brake Calipers: SRAM Apex Flat Mount Hydraulic; Front Brake Rotor: SRAM Centerline 6-bolt 180mm; Rear Brake Rotor: SRAM Centerline 6-bolt 180mm; Brake Levers: SRAM Apex 12
Wheels and tires
Check wheels and tires →Archived: Rims: WTB KOM Team i27 700c 32h · Hubs: (F) Formula 100 x 12 6-bolt / (R) Formula 142 x 12 6-bolt, 11sp Road freehub · Front tire: Maxxis Ravager 700 x 50 TR EXO · Rear tire: Maxxis Ravager 700 x 50 TR EXO
Controls and contact points
Archived: Headset: FSA Orbit No. 57E, ZS 44/56 · Handlebar: Kona 20-degree flare, 48: 440mm; 50: 460mm; 52-54: 480mm; 56: 500mm; 58: 520mm · Stem: Kona 6-degree rise, 48-52: 40mm; 54-58: 50mm · Seatpost: TranzX Dropper +RAD Internal, 31.6mm, 125mm travel · Saddle: WTB Volt Medium Steel SL
Before and during the test ride
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Gallery8 images
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.