Geometry ?
Soma Buena Vista Disc 2026 geometry in sizes 42–62: stack 561–662 mm, reach 364–402 mm, head angle 71–72.5°.
| 42 | 50 | 54 | 58 | 62 | |
|---|---|---|---|---|---|
| Stack | 561 mm | 577 mm | 593 mm | 627 mm | 662 mm |
| Reach | 364 mm | 371 mm | 386 mm | 390 mm | 402 mm |
| Head angle | 71° | 71.5° | 72° | 72° | 72.5° |
| Seat angle | 74.5° | 74.5° | 74° | 73° | 73° |
| Seat tube (c-t) | 420 mm | 500 mm | 540 mm | 580 mm | – |
| Head tube | 130 mm | 145 mm | 160 mm | 195 mm | 230 mm |
| Top tube (effective) | 518 mm | 530 mm | 555 mm | 582 mm | 605 mm |
| BB drop | 70 mm | 70 mm | 70 mm | 70 mm | 70 mm |
| Wheelbase | 1003 mm | 1011 mm | 1026 mm | 1042 mm | 1060 mm |
| Fork offset | 45 mm | 45 mm | 45 mm | 45 mm | 45 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 42 (stack 561 / reach 364 mm).
Rock Machine Gravelride Crb (2024)size S · stack 561 / reach 365 mmTout Terrain Vasco GT 28 (2026)size S · stack 562 / reach 363 mmOrigine Trail (2026)size S · stack 563 / reach 364 mmPolygon Bend R7 / R9X (rigid fork) (2024)size S · stack 563 / reach 364 mmSpecialized Diverge 4 (alloy E5) (2026)size 49 · stack 563 / reach 365 mmSpecialized Diverge 4 (carbon) (2026)size 49 · stack 563 / reach 365 mm
Stack and reach within 12 mm of size 50 (stack 577 / reach 371 mm).
Bombtrack Hook EXT (2026)size S · stack 577 / reach 369 mmBombtrack Hook EXT Ti (2026)size S · stack 577 / reach 369 mmSeven G-758 (Endurance Fit) (2026)size 52 · stack 575 / reach 371 mmMosaic GT-1 i45 (2026)size 54 · stack 576 / reach 373 mmSeven G-743 (Endurance Fit) (2026)size 52 · stack 575 / reach 372 mmMason SLR (2026)size 52CM · stack 576 / reach 373 mm
Stack and reach within 12 mm of size 54 (stack 593 / reach 386 mm).
Shand Stramash (2026)size M · stack 593 / reach 386 mmBisan Reactive (2026)size 54 cm · stack 594 / reach 386 mmCo-Motion Klatch (2026)size 56 · stack 594 / reach 387 mmGenesis Vagabond (2026)size SM · stack 592 / reach 385 mmKellys SOOT (alloy: X70 / X50 / X30) (2026)size L · stack 594 / reach 387 mmPassoni Cicloprato RTR (2026)size 56 · stack 594 / reach 387 mm
Stack and reach within 12 mm of size 58 (stack 627 / reach 390 mm).
State Bicycle Co. Titanium All-Road (2024)size L · stack 627 / reach 392 mmBlack Mountain Cycles Monstercross V6.2 (2026)size 59 · stack 628 / reach 392 mmPanorama Anticosti (2026)size LARGE · stack 625 / reach 388 mmPolygon Bend V9X (suspension fork) (2024)size L · stack 624 / reach 389 mmPinarello Crossista (2026)size 58 · stack 626 / reach 387 mmPinarello Dogma GR (2026)size 57.5 · stack 624 / reach 393 mm
Stack and reach within 12 mm of size 62 (stack 662 / reach 402 mm).
Mosaic GT-1 i55 (2026)size 62 · stack 660 / reach 404 mmKona Sutra LTD (2026)size 58 · stack 660 / reach 405 mmFinna Landscape UDH (2026)size XL · stack 661 / reach 398 mmBlack Mountain Cycles Mod Zero (2026)size 59 · stack 665 / reach 405 mmTout Terrain Blueridge (2026)size XL · stack 665 / reach 399 mmSalsa Cutthroat C (2026)size 60 · stack 664 / reach 406 mm
Spotted a mistake or a missing build? Let me know.