A size-by-size geometry profile with manufacturer provenance and RideDNA consistency-audit context. Use the complete table to compare fit and handling before opening the interactive tools.
Source: Manufacturer geometry source
Provenance: published is present in the manufacturer data; derived is calculated by RideDNA; manual is a staff-entered reference rather than a manufacturer-chart value. “Not published” means the manufacturer did not provide a value for that size.
| Size | Stack | Reach | HTA | STA | ETT | Chainstay | Wheelbase | Front center | BB drop | Trail | Fork offset | Audit context |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 49.5cm | 543 mm published | 355 mm published | 70.3 ° derived | 75.5 ° derived | 495 mm derived | 450 mm derived | 1019 mm published | 580 mm derived | 75 mm derived | 72.2 mm derived | 50 mm published | green |
| All 3 consistency checks passed | ||||||||||||
| 52cm | 547 mm published | 368 mm published | 71.5 ° derived | 74.5 ° derived | 520 mm derived | 450 mm derived | 1023 mm published | 583 mm derived | 75 mm derived | 64.0 mm derived | 50 mm published | green |
| All 3 consistency checks passed | ||||||||||||
| 54cm | 590 mm published | 365 mm published | 71.5 ° derived | 73.5 ° derived | 540 mm derived | 450 mm derived | 1034 mm published | 595 mm derived | 75 mm derived | 64.0 mm derived | 50 mm published | green |
| All 3 consistency checks passed | ||||||||||||
| 55cm | 609 mm published | 364 mm published | 71.5 ° derived | 73.0 ° derived | 550 mm derived | 450 mm derived | 1039 mm published | 600 mm derived | 75 mm derived | 64.0 mm derived | 50 mm published | green |
| All 3 consistency checks passed | ||||||||||||
| 57cm | 628 mm published | 372 mm published | 71.5 ° derived | 72.5 ° derived | 570 mm derived | 450 mm derived | 1054 mm published | 614 mm derived | 75 mm derived | 64.0 mm derived | 50 mm published | green |
| All 3 consistency checks passed | ||||||||||||
| 59.5cm | 647 mm published | 385 mm published | 71.5 ° derived | 72.0 ° derived | 595 mm derived | 450 mm derived | 1073 mm published | 633 mm derived | 75 mm derived | 64.0 mm derived | 50 mm published | green |
| All 3 consistency checks passed | ||||||||||||
Overall consistency: green. This context is shown alongside the table so a rider can distinguish a complete published specification from a value that RideDNA had to derive or could not independently verify.
Geometry reconciliation applies a 10mm integrated headset top cap correction to both stack and reach before comparison against the engine's forward-model calculations. The Salsa Vaya's published geometry reconciles within ±1mm engineering tolerance across all six sizes for stack, reach, and wheelbase. The RideDNA Geometry Engine reconciliation checks confirm internal geometric consistency, with all checks passing green on five of six sizes and one minor yellow flag on size 49.5cm for fork offset back-calculation. The seat tube angle progression shows two unusually large single-step changes (≥1.0°) between adjacent sizes that warrant verification, though the root cause cannot be determined from the published geometry data alone.