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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L | 619 mm published | 464 mm published | 67.9 ° derived | 75.3 ° derived | 626 mm derived | 425 mm derived | 1158 mm published | 740 mm derived | 62 mm derived | 105.0 mm published | 44 mm published | yellow |
| 1 of 4 checks flagged — Trail Reconciliation shows 2.3mm discrepancy | ||||||||||||
| M | 605 mm published | 442 mm published | 67.9 ° derived | 75.4 ° derived | 600 mm derived | 425 mm derived | 1131 mm published | 713 mm derived | 62 mm derived | 105.0 mm published | 44 mm published | yellow |
| 1 of 4 checks flagged — Trail Reconciliation shows 2.3mm discrepancy | ||||||||||||
| S | 600 mm published | 419 mm published | 67.9 ° derived | 75.4 ° derived | 575 mm derived | 425 mm derived | 1105 mm published | 687 mm derived | 62 mm derived | 105.0 mm published | 44 mm published | yellow |
| 1 of 4 checks flagged — Trail Reconciliation shows 2.3mm discrepancy | ||||||||||||
| XL | 628 mm published | 491 mm published | 67.9 ° derived | 75.3 ° derived | 657 mm derived | 425 mm derived | 1189 mm published | 772 mm derived | 62 mm derived | 105.0 mm published | 44 mm published | yellow |
| 1 of 4 checks flagged — Trail Reconciliation shows 2.3mm discrepancy | ||||||||||||
Overall consistency: yellow. 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 3mm integrated headset top cap correction to both stack and reach before comparison against the engine's forward-model calculations. The Scott Scale Gravel RC exhibits strong internal geometric consistency across all four sizes. Stack, reach, and wheelbase reconcile within ±1mm engineering tolerance on all sizes. Trail shows a systematic 2.3mm data inaccuracy in the published value across all sizes, indicating the published trail values are not consistent with the manufacturer's stated reference tire and published fork offset and head tube angle geometry.