Is it gravel? Journey or ATB? Old-fashioned XC? The web is stuffed with opinions on the fast-growing phase many merely seek advice from as Gravel. For these focused on “surviving an everlasting existence of limbo between gravel and mountain,” Kona is introducing the all-new Ouroboros.
The Ouroboros is an all-new platform of gravel bikes from the unbound minds at Kona. Whether or not you’re a gravel-loving mountain biker or a mountain-bike-loving gravel biker, the Ouroboros is the lure to be a magnet for each. Pack it expertly for the lengthy haul, nimbly discover the perimeters of singletrack, or full a number of days of probably the most splendidly bizarre and delightfully chaotic of occasions – the Ouroboros is deliberately designed across the rowdy stuff.
Kona Bikes
![Kona Ouroboros head tube](https://bikerumor.com/wp-content/uploads/2024/04/Kona-Ouroboros-dropbar-grave-bikepacking-adventure-bike-actual-weight-06-1536x1024.jpg)
![Kona Ouroboros Rockshox Rudy](https://bikerumor.com/wp-content/uploads/2024/04/Kona-Ouroboros-dropbar-grave-bikepacking-adventure-bike-actual-weight-09-1536x1024.jpg)
![Kona Ouroboros fender mounts](https://bikerumor.com/wp-content/uploads/2024/04/Kona-Ouroboros-dropbar-grave-bikepacking-adventure-bike-actual-weight-03-1536x1024.jpg)
![Kona Ouroboros with Transmission](https://bikerumor.com/wp-content/uploads/2024/04/Kona-Ouroboros-dropbar-grave-bikepacking-adventure-bike-actual-weight-14-1536x1024.jpg)
![Kona Ouroboros controls](https://bikerumor.com/wp-content/uploads/2024/04/Kona-Ouroboros-dropbar-grave-bikepacking-adventure-bike-actual-weight-10-1536x1024.jpg)
Calling it a motorbike for “hardcore adventuring,” Kona additionally factors out that whereas some bikes tolerate mountain bike parts, the Ouroboros was designed round them. As an alternative of usually weight-conscious parts, you’ll discover particulars like 180mm rotors, body clearance for as much as 2.1″ MTB tires, entrance suspension, and SRAM Transmission on the Supreme mannequin. As such, our 50cm pattern suggestions the scales at 23.15lbs – heavy for a gravel bike, however gentle for a mountain bike.
![Kona Ouroboros with maxxis Ravenger 50](https://bikerumor.com/wp-content/uploads/2024/04/Kona-Ouroboros-dropbar-grave-bikepacking-adventure-bike-actual-weight-08-1536x1024.jpg)
![Zipp 101 XPLR wheels](https://bikerumor.com/wp-content/uploads/2024/04/Kona-Ouroboros-dropbar-grave-bikepacking-adventure-bike-actual-weight-01-1536x1024.jpg)
![Kona Ouroboros fork clearance](https://bikerumor.com/wp-content/uploads/2024/04/Kona-Ouroboros-dropbar-grave-bikepacking-adventure-bike-actual-weight-07-1536x1024.jpg)
Tire clearance is restricted to 700c x 50mm on the Fox or RockShox suspension forks, however the inflexible carbon fork can match as much as a 29 x 2.5″ tire!
The carbon body additionally contains geometry someplace between gravel and MTB with a 69.5º head tube angle and a 74º seat tube angle for a 52cm.
![](https://bikerumor.com/wp-content/uploads/2024/04/Kona-Ouroboros-frame-specs.png)
One other MTB-influenced spec? The 31.6mm seat put up. As an alternative of the everyday 27.2mm put up discovered on most gravel bikes for added compliance, the Ouroboros makes use of a 31.6mm put up for elevated dropper put up sturdiness. I adore it when manufacturers present detailed spec sheets just like the one above for the Ouroboros. It leaves no questions on specs just like the BB86 backside bracket, chainline, headset, and even axle thread pitch.
![Kona Ouroboros top tube mounts](https://bikerumor.com/wp-content/uploads/2024/04/Kona-Ouroboros-dropbar-grave-bikepacking-adventure-bike-actual-weight-02-1536x1024.jpg)
![Kona Ouroboros frame mounts](https://bikerumor.com/wp-content/uploads/2024/04/Kona-Ouroboros-dropbar-grave-bikepacking-adventure-bike-actual-weight-13-1536x1024.jpg)
Relying on the spec and your construct ambitions, the Ouroboros will be loaded up with something from fenders, to racks, and tons of luggage and accent mounts. The within of the entrance triangle has sufficient mounts that customized luggage will be added with out the necessity for straps. You’ll additionally discover a entrance derailleur mount if you happen to’d choose to run a 2x or 3x drivetrain.
![Kona Ouroboros CR](https://bikerumor.com/wp-content/uploads/2024/04/my23_ouroboros_cr_angle-1536x1331.jpg)
![Kona Ouroboros CR DL](https://bikerumor.com/wp-content/uploads/2024/04/my23_ouroboros_cr_dl_angle-1536x1322.jpg)
![Kona Ouroboros Supreme](https://bikerumor.com/wp-content/uploads/2024/04/my23_ouroboros_supreme_angle-1536x1318.jpg)
Full bikes shall be supplied in 1x or 2x, and can begin on the Ouroboros CR with a Fox TC32 40mm suspension fork. Then the Ouroboros CR/DL strikes to totally inflexible with a 2×12 SRAM Rival eTap AXS drivetrain for extra traditional gravel adventures. Lastly, the Ouroboros Supreme incorporates a huge construct full with a RockShox Rudy Final XPLR fork, SRAM Power eTap AXS/X0 Eagle Transmission, Reverb AXS dropper put up, and even the Zipp 101 XPLR carbon wheels.
![](https://bikerumor.com/wp-content/uploads/2024/04/Ouroboros-CR-spec.png)
![](https://bikerumor.com/wp-content/uploads/2024/04/Ouroboros-CRDL-spec.png)
![](https://bikerumor.com/wp-content/uploads/2024/04/Ouroboros-Supreme-spec.png)
First Impressions
I had hoped to get a while on the Ouroboros earlier than the launch (and leaving for Sea Otter), however I haven’t fairly gotten there but – partially as a result of I’m nonetheless determining the match. With out having the ability to attempt the bike first, I primarily based my dimension request on the final Kona gravel bike I rode, the Libre DL. On that body, I rode a 49cm which appeared to suit greater than the quantity indicated. For the reason that 50cm Ouroboros had a barely longer attain quantity than the 49cm Libre DL and solely a 1º distinction in STA, I requested the 50cm.
Upon getting it out of the field, it was clear that the Ouroboros has a a lot totally different match, and the 50cm feels tiny. It additionally comes with a really quick 40mm stem, so I’m within the strategy of determining an extended stem to make the match work. Due to that, I’d say if you happen to’re on the fence about sizing, go together with the bigger dimension – if you happen to’re going off the sizing from a previous Kona gravel bike, my recommendation can be go by the highest tube size somewhat than the attain. I do know now that I ought to at the very least be on the 52cm body.
I ought to have extra to report after Sea Otter.