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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LG | 600 mm published | 420 mm published | 69.5 ° derived | 74.0 ° derived | 592 mm derived | 430 mm derived | 1087 mm published | 668 mm published | 76 mm derived | 85.0 mm derived | 45 mm derived | green |
| All 4 consistency checks passed | ||||||||||||
| MD | 576 mm published | 405 mm published | 69.5 ° derived | 74.0 ° derived | 570 mm derived | 430 mm derived | 1063 mm published | 645 mm published | 76 mm derived | 85.0 mm derived | 45 mm derived | green |
| All 4 consistency checks passed | ||||||||||||
| SM | 564 mm published | 390 mm published | 69.5 ° derived | 74.0 ° derived | 552 mm derived | 430 mm derived | 1043 mm published | 625 mm published | 78 mm derived | 85.0 mm derived | 45 mm derived | green |
| All 4 consistency checks passed | ||||||||||||
| XL | 612 mm published | 435 mm published | 69.5 ° derived | 74.0 ° derived | 610 mm derived | 429 mm derived | 1108 mm published | 688 mm published | 74 mm derived | 85.0 mm derived | 45 mm derived | green |
| All 4 consistency checks passed | ||||||||||||
| XS | 550 mm published | 375 mm published | 69.5 ° derived | 74.0 ° derived | 533 mm derived | 430 mm derived | 1023 mm published | 605 mm published | 78 mm derived | 85.0 mm derived | 45 mm derived | green |
| All 4 consistency checks passed | ||||||||||||
| XXL | 631 mm published | 450 mm published | 69.5 ° derived | 74.0 ° derived | 631 mm derived | 429 mm derived | 1130 mm published | 710 mm published | 74 mm derived | 85.0 mm derived | 45 mm derived | green |
| All 4 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 Santa Cruz Stigmata geometry specification demonstrates strong internal consistency across all six sizes. All four primary checks — stack, reach, wheelbase, and front center — reconcile within ±1mm engineering tolerance. The RideDNA Geometry Engine reconciliation checks independently confirm this consistency, with all five back-calculated dimensions (head tube length, fork offset, chainstay length, fork A2C, and head tube angle) reconciling within ±1mm or ±0.2° across the entire size run.