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 | 610 mm published | 402 mm published | 71.5 ° derived | 73.5 ° derived | 583 mm derived | 430 mm derived | 1059 mm published | 639 mm published | 75 mm derived | 65.3 mm derived | 51 mm published | green |
| All 4 consistency checks passed | ||||||||||||
| MD | 584 mm published | 391 mm published | 71.0 ° derived | 73.5 ° derived | 564 mm derived | 430 mm derived | 1044 mm published | 625 mm published | 75 mm derived | 68.6 mm derived | 51 mm published | green |
| All 4 consistency checks passed | ||||||||||||
| SM | 563 mm published | 383 mm published | 70.5 ° derived | 74.0 ° derived | 545 mm derived | 430 mm derived | 1034 mm published | 615 mm published | 75 mm derived | 72.0 mm derived | 51 mm published | green |
| All 4 consistency checks passed | ||||||||||||
| XL | 638 mm published | 410 mm published | 71.5 ° derived | 73.0 ° derived | 605 mm derived | 432 mm derived | 1077 mm published | 656 mm published | 75 mm derived | 65.3 mm derived | 51 mm published | green |
| All 4 consistency checks passed | ||||||||||||
| XS | 544 mm published | 376 mm published | 70.5 ° derived | 74.5 ° derived | 527 mm derived | 430 mm derived | 1020 mm published | 601 mm published | 75 mm derived | 72.0 mm derived | 51 mm published | 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 Bianchi Arcadex geometry specification demonstrates strong internal consistency across all five sizes. Stack, reach, wheelbase, and front center all reconcile within ±1mm engineering tolerance, with deltas ranging from 0.0mm to 1.2mm. The manufacturer's published geometry values form a coherent and mutually consistent set, with no systematic discrepancies or data inaccuracies identified.