Geometry ?
Baum Orbis 2026 geometry in sizes 48–60: stack 520–613 mm, reach 369–397 mm, head angle 70.5–72°.
| 48 | 50 | 52 | 54 | 56 | 58 | 60 | |
|---|---|---|---|---|---|---|---|
| Stack | 520 mm | 537 mm | 545 mm | 552 mm | 572 mm | 589 mm | 613 mm |
| Reach | 369 mm | 374 mm | 377 mm | 390 mm | 390 mm | 395 mm | 397 mm |
| Head angle | 70.5° | 71.5° | 71.5° | 71.5° | 72° | 72° | 72° |
| Seat angle | 74.5° | 74.5° | 74° | 74° | 73.5° | 73° | 73° |
| Seat tube (?) | 465 mm | 480 mm | 490 mm | 510 mm | 530 mm | 550 mm | 565 mm |
| Head tube | 100 mm | 114 mm | 123 mm | 131 mm | 150 mm | 169 mm | 195 mm |
| Top tube (effective) | 515 mm | 525 mm | 535 mm | 550 mm | 560 mm | 575 mm | 585 mm |
| BB drop | 80 mm | 80 mm | 80 mm | 80 mm | 80 mm | 78 mm | 78 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: baumcycles.com, checked 12 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 48 (stack 520 / reach 369 mm).
Stack and reach within 12 mm of size 50 (stack 537 / reach 374 mm).
Stack and reach within 12 mm of size 52 (stack 545 / reach 377 mm).
Stack and reach within 12 mm of size 54 (stack 552 / reach 390 mm).
Stack and reach within 12 mm of size 56 (stack 572 / reach 390 mm).
Stack and reach within 12 mm of size 58 (stack 589 / reach 395 mm).
Stack and reach within 12 mm of size 60 (stack 613 / 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 9 values for this model’s stem and bars. Add them