Kona Ouroboros CR

Name: Kona Ouroboros CR
Brand: Kona

2024 RoadGravel Manufacturer page

Last known price: $2,999

Prices shown first for United States
Fork travel: 40 mm
Wheels: 700c
Drivetrain: 1 × 12 38t / 11–50t
Gear range: 455%
Frame: Carbon
Brakes: Hydraulic disc

Sizes

Size guide

48cm
50cm
52cm
54cm
56cm
58cm

The manufacturer did not publish rider heights for these sizes.

Components

19 of 22 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

Kona Carbon Not identified

Suspension

2 parts

Drivetrain

8 parts

Bottom bracket
- SRAM
Cassette
- SRAM PG-1230 Eagle 12 speeds 11–50t
PG-1230
Chain
- SRAM NX Eagle 12 speeds
Chain guide

None
Crankset
- SRAM Apex 38t
Front derailleur

None
Rear derailleur
- SRAM Apex Eagle 12 speeds
Shifters
- SRAM Apex

Brakes

3 parts

Wheels and tires

5 parts

Front hub
- Formula
Rear hub
- Formula
Rims
- WTB Proterra Light i27
Spokes

Stainless Black 14g Not identified
Tires
- Maxxis Ravager

Cockpit and contact points

7 parts

Grips

Velo bar tape Not identified
Handlebar
- Kona
Headset
- FSA NO.57E
Pedals

None
Saddle
- WTB Volt
Seatpost
- Tranz-X
Stem
- Kona

Sizes and geometry

6 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size 52cm

Table

Reach 382mm

Stack 598mm

Wheelbase 1082mm

Head angle 68.7°

Seat angle 73.2°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 6 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	372	377	382	386	391	396
Stackmm	566	581	598	616	636	666
Top tube lengthmm	532	547	559	578	595	616
Seat tube lengthmm	410	410	455	455	500	535
Head tube lengthmm	116	132	148	172	193	225
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 lengthmm	445	445	445	445	445	445
Wheelbasemm	1060	1071	1082	1096	1108	1124
Front centermm	624	635	646	659	671	687
Bottom bracket dropmm	69	69	69	66	66	66
Bottom bracket heightmm	296	296	296	299	299	299
Standover heightmm	725	730	769	777	814	848
Fork rakemm	51	51	51	51	51	51
Trailmm	81	81	82	80	81	82
Stack/reach ratio	1.52	1.54	1.57	1.60	1.63	1.68

Not published by the manufacturer: Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon
Fork material: Carbon

Suspension

Suspension configuration: Hardtail
Front travel: 40 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 38
Largest chainring: 38
Rear sprockets: 12
Smallest sprocket: 11
Largest sprocket: 50
Lowest gear: 22.0 in
Highest gear: 100.2 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BB86/BB92
Fork spring: Air
Tire width: 50c
Wheel material: Aluminum
Wheel size: 700c

Technical analysis

3 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Lowest gear

22.0 gear inches

This value is below the central range for this class.

Cohort: Road / Gravel Model year: 2024
Sample: 1,719 bicycles with this information
Coverage: 76.6% of the class

Highest gear

100.2 gear inches

This value is below the central range for this class.

Cohort: Road / Gravel Model year: 2024
Sample: 1,719 bicycles with this information
Coverage: 76.6% of the class

Shifting

Mechanical

772 of 2,241 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2024
Sample: 2,241 bicycles with this information
Coverage: 99.9% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 8.4 km/h
Highest gear: 38.4 km/h

Total gear range 455%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 22.0–100.2 gear inches
Class reference (p10–p90): 23.2–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Gravel Model year: 2024
Lowest gear: 1719 bicycles with this information, 76.6% of the class
Highest gear: 1719 bicycles with this information, 76.6% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2024 builds

Differences across 2024 builds
Specification	This bicycle Kona Ouroboros CR	Kona Ouroboros	Kona Ouroboros CR/DL	Kona Ouroboros Supreme
Frame
Frame material	Carbon	Aluminum	Carbon	Carbon
Fork material	Carbon	Not informed	Carbon	Not informed
Suspension
Suspension configuration	Hardtail	Hardtail	Rigid	Hardtail
Front travel	40 mm	40 mm	Not informed	40 mm
Drivetrain
Front chainrings	1	1	2	1
Smallest chainring	38	40	30	40
Largest chainring	38	40	43	40
Rear sprockets	12	10	12	12
Smallest sprocket	11	11	10	10
Largest sprocket	50	48	36	52
Lowest gear	22.0 in	24.2 in	24.2 in	22.3 in
Highest gear	100.2 in	105.5 in	124.7 in	116.0 in
Brakes
Brake type	Hydraulic disc	Mechanical disc	Hydraulic disc	Hydraulic disc
Cockpit
Seatpost	Dropper seatpost	Dropper seatpost	Rigid seatpost	Dropper seatpost
Shifting	Mechanical	Mechanical	Electronic	Electronic
Derailleur hanger	Not informed	Not informed	Not informed	UDH
Other specifications
Fork spring	Air	Air	Not informed	Air
Suspension	Hardtail	Hardtail	Rigid	Hardtail
Tire width	50c	50c	45c	50c
Wheel material	Aluminum	Aluminum	Aluminum	Carbon