Geometry ?
Soma Fog Cutter 2026 geometry in sizes 48–66: stack 543–648 mm, reach 372–412 mm, head angle 71.5–72.3°.
| 48 | 51 | 54 | 56 | 58 | 61 | 66 | |
|---|---|---|---|---|---|---|---|
| Stack | 543 mm | 551 mm | 570 mm | 585 mm | 603 mm | 631 mm | 648 mm |
| Reach | 372 mm | 377 mm | 390 mm | 393 mm | 396 mm | 398 mm | 412 mm |
| Head angle | 71.5° | 72° | 72.3° | 72.3° | 72.3° | 72.3° | 72.3° |
| Seat angle | 75° | 74° | 74° | 73.5° | 73° | 72.5° | 72.5° |
| Seat tube (c-t) | 480 mm | 510 mm | 540 mm | 560 mm | 580 mm | 610 mm | 660 mm |
| Head tube | 110 mm | 115 mm | 130 mm | 145 mm | 160 mm | 195 mm | 220 mm |
| Top tube (effective) | 518 mm | 535 mm | 554 mm | 566 mm | 579 mm | 598 mm | 618 mm |
| BB drop | 72 mm | 72 mm | 72 mm | 72 mm | 72 mm | 72 mm | 66 mm |
| Chainstay | 422 mm | 422 mm | 422 mm | 422 mm | 426 mm | 426 mm | 426 mm |
| Wheelbase | 999 mm | 1002 mm | 1015 mm | 1023 mm | 1029 mm | 1033 mm | 1071 mm |
| Fork offset | 48 mm | 48 mm | 48 mm | 48 mm | 48 mm | 48 mm | 48 mm |
Source: somafab.com, 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 48 (stack 543 / reach 372 mm).
Stack and reach within 12 mm of size 51 (stack 551 / reach 377 mm).
Stack and reach within 12 mm of size 54 (stack 570 / reach 390 mm).
Stack and reach within 12 mm of size 56 (stack 585 / reach 393 mm).
Stack and reach within 12 mm of size 58 (stack 603 / reach 396 mm).
Stack and reach within 12 mm of size 61 (stack 631 / reach 398 mm).
Stack and reach within 12 mm of size 66 (stack 648 / reach 412 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