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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 49cm | 510 mm published | 366 mm published | 68.5 ° derived | 76.0 ° derived | 493 mm derived | 440 mm derived | 1027 mm published | 597 mm derived | 70 mm derived | 85.3 mm derived | 50 mm published | green |
| All 3 consistency checks passed | ||||||||||||
| 51cm | 528 mm published | 369 mm published | 69.5 ° derived | 75.0 ° derived | 510 mm derived | 440 mm derived | 1028 mm published | 597 mm derived | 70 mm derived | 78.6 mm derived | 50 mm published | green |
| All 3 consistency checks passed | ||||||||||||
| 53cm | 552 mm published | 372 mm published | 69.5 ° derived | 74.0 ° derived | 530 mm derived | 440 mm derived | 1040 mm published | 609 mm derived | 70 mm derived | 78.6 mm derived | 50 mm published | green |
| All 3 consistency checks passed | ||||||||||||
| 55cm | 570 mm published | 376 mm published | 69.5 ° derived | 73.0 ° derived | 550 mm derived | 440 mm derived | 1051 mm published | 620 mm derived | 70 mm derived | 78.6 mm derived | 50 mm published | green |
| All 3 consistency checks passed | ||||||||||||
| 57cm | 599 mm published | 387 mm published | 69.5 ° derived | 73.0 ° derived | 570 mm derived | 440 mm derived | 1072 mm published | 642 mm derived | 70 mm derived | 78.6 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.
The Salsa Journeyer gravel geometry reconciles within ±1mm engineering tolerance across all five sizes for stack, reach, and wheelbase. The manufacturer's published specification is internally consistent with the RideDNA engine's forward-model calculations. Seat tube angle shows unusually large single-step changes of 1.0° between adjacent sizes (49cm→51cm, 51cm→53cm, 53cm→55cm) — while STA normally decreases as frame size increases, jumps of this magnitude warrant verification, though the root cause cannot be determined from the published geometry data alone.