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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 420 | 509 mm published | 371 mm published | 70.6 ° derived | 75.5 ° derived | 503 mm derived | 408 mm derived | 976 mm derived | 579 mm published | 74 mm derived | 70.0 mm published | 47 mm published | green |
| All 4 consistency checks passed | ||||||||||||
| 455 | 523 mm published | 377 mm published | 71.5 ° derived | 75.3 ° derived | 514 mm derived | 408 mm derived | 978 mm derived | 582 mm published | 74 mm derived | 65.0 mm published | 47 mm published | green |
| All 4 consistency checks passed | ||||||||||||
| 485 | 539 mm published | 384 mm published | 72.3 ° derived | 74.8 ° derived | 530 mm derived | 408 mm derived | 984 mm derived | 587 mm published | 72 mm derived | 59.5 mm published | 47 mm published | green |
| All 4 consistency checks passed | ||||||||||||
| 510 | 557 mm published | 390 mm published | 72.5 ° derived | 74.5 ° derived | 544 mm derived | 408 mm derived | 993 mm derived | 597 mm published | 72 mm derived | 58.5 mm published | 47 mm published | green |
| All 4 consistency checks passed | ||||||||||||
| 530 | 575 mm published | 397 mm published | 73.0 ° derived | 73.8 ° derived | 564 mm derived | 408 mm derived | 997 mm derived | 600 mm published | 72 mm derived | 59.5 mm published | 43 mm published | green |
| All 4 consistency checks passed | ||||||||||||
| 550 | 593 mm published | 404 mm published | 73.0 ° derived | 73.5 ° derived | 578 mm derived | 408 mm derived | 1008 mm derived | 613 mm published | 72 mm derived | 59.5 mm published | 43 mm published | green |
| All 4 consistency checks passed | ||||||||||||
| 570 | 612 mm published | 411 mm published | 73.5 ° derived | 73.3 ° derived | 595 mm derived | 408 mm derived | 1018 mm derived | 622 mm published | 72 mm derived | 57.5 mm published | 43 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 Colnago V5Rs geometry reconciles within ±1mm engineering tolerance across all seven sizes for stack, reach, front center, and trail. The manufacturer's published specification demonstrates internal geometric consistency, with the forward-model calculations confirming the published values across the size run. This model employs intentionally different fork offsets across sizes (43mm on 530–570mm, 47mm on 420–510mm) to maintain consistent handling characteristics across a wide head tube angle range.