Geometry ?
Unibike Craton 2026 geometry in sizes 49–56: stack 548–604 mm, reach 370–397 mm, head angle 71°.
| 49 | 52 | 54 | 56 | |
|---|---|---|---|---|
| Stack | 548 mm | 562 mm | 581 mm | 604 mm |
| Reach | 370 mm | 379 mm | 388 mm | 397 mm |
| Head angle | 71° | 71° | 71° | 71° |
| Seat angle | 73° | 73° | 73° | 73° |
| Seat tube (?) | 460 mm | 490 mm | 505 mm | 525 mm |
| Head tube | 125 mm | 140 mm | 160 mm | 185 mm |
| Top tube (effective) | 538 mm | 551 mm | 571 mm | 588 mm |
| Chainstay | 435 mm | 435 mm | 435 mm | 435 mm |
| Wheelbase | 1023 mm | 1036 mm | 1052 mm | 1069 mm |
(?) by the seat tube length: the manufacturer doesn’t say whether it’s measured centre to centre (c-c) or centre to top (c-t).
Source: unibike.pl, checked 13 Nov 2026 · bar position: worked out from published data
Stock build
I don’t have the build for each size yet.
Frames with similar geometry
Stack and reach within 12 mm of size 49 (stack 548 / reach 370 mm).
Stack and reach within 12 mm of size 52 (stack 562 / reach 379 mm).
Stack and reach within 12 mm of size 54 (stack 581 / reach 388 mm).
Stack and reach within 12 mm of size 56 (stack 604 / reach 397 mm).
Spotted a mistake or a missing build? Let me know.
Are you the manufacturer, or do you sell this bike? I’m missing 6 values for this model’s stem and bars. Add them