Gravel
Kona Ouroboros
2026 · 700c wheels · 40 mm fork · 6 sizes
Mountain-bike-inspired gravel bike sold with a 40 mm travel suspension fork, in aluminium (Ouroboros) and carbon (Ouroboros CR, CR/DL and Supreme) versions that share this geometry. The numbers are for the suspension-fork bikes (435 mm fork length, 51 mm offset). Kona publishes a separate table for the frameset and older rigid-fork builds (420 mm fork, 55 mm offset), which gives a 69.5 degree head angle, a seat angle about 0.8 degrees steeper, reach 380 to 405 mm, stack 560 to 660 mm and 6 mm more bottom bracket drop. Chainstays are 445 mm on every size.
Source: konaworld.com/products/ouroboros
Size run
Published geometry by size. How each size rides and fits for your rider profile loads with the page.
| Size | 48 | 50 | 52 | 54 | 56 | 58 |
|---|---|---|---|---|---|---|
| Stack (mm) | 566 | 581 | 598 | 616 | 636 | 666 |
| Reach (mm) | 372 | 377 | 382 | 386 | 391 | 396 |
| Head angle (°) | 68.7 | 68.7 | 68.7 | 68.7 | 68.7 | 68.7 |
| Seat angle (°) | 74.2 | 73.7 | 73.2 | 72.7 | 72.2 | 71.7 |