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 | 574 mm published | 390 mm published | 72.0 ° derived | 74.0 ° derived | 556 mm derived | 412 mm derived | 1006 mm published | Not published | Not published | Not published | Not published | purple |
| 3 of 3 checks could not be independently verified — manufacturer did not publish the required geometry | ||||||||||||
| M | 556 mm published | 385 mm published | 72.0 ° derived | 74.0 ° derived | 545 mm derived | 412 mm derived | 994 mm published | Not published | Not published | Not published | Not published | purple |
| 3 of 3 checks could not be independently verified — manufacturer did not publish the required geometry | ||||||||||||
| S | 538 mm published | 378 mm published | 71.3 ° derived | 75.0 ° derived | 524 mm derived | 410 mm derived | 986 mm published | Not published | Not published | Not published | Not published | purple |
| 3 of 3 checks could not be independently verified — manufacturer did not publish the required geometry | ||||||||||||
| XL | 592 mm published | 396 mm published | 72.0 ° derived | 73.0 ° derived | 578 mm derived | 414 mm derived | 1021 mm published | Not published | Not published | Not published | Not published | purple |
| 3 of 3 checks could not be independently verified — manufacturer did not publish the required geometry | ||||||||||||
| XS | 520 mm published | 372 mm published | 70.5 ° derived | 75.5 ° derived | 509 mm derived | 410 mm derived | 981 mm published | Not published | Not published | Not published | Not published | purple |
| 3 of 3 checks could not be independently verified — manufacturer did not publish the required geometry | ||||||||||||
| XXL | 610 mm published | 402 mm published | 72.0 ° derived | 73.0 ° derived | 589 mm derived | 414 mm derived | 1033 mm published | Not published | Not published | Not published | Not published | purple |
| 3 of 3 checks could not be independently verified — manufacturer did not publish the required geometry | ||||||||||||
Overall consistency: purple. 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 Wilier Rapida specification is deliberately incomplete, omitting fork offset, fork axle-to-crown length (A2C), BB drop, front center, and trail. Front center and trail cannot be determined because all three core fork dimensions (offset, A2C, BB drop) are simultaneously withheld, blocking any back-calculation path. The stack, reach, and wheelbase checks show 0.0mm deltas across all six sizes, but these are trivial passes — the engine carried through published values because the withheld dimensions prevent independent geometric calculation. These results do not constitute genuine verification of the manufacturer's published geometry. By omitting these 5 dimensions, the manufacturer prevents independent scrutiny of its geometry claims and denies consumers the data they need to evaluate handling characteristics or make meaningful comparisons with competing models. These are not obscure technical figures — they are standard dimensions routinely published by competing manufacturers. This is a deliberate choice, not a technical limitation — the manufacturer possesses this information and has elected not to share it. Consumers cannot assess fit, predict handling, or compare this bicycle on equal terms without it. Transparency about geometry is not optional: it is the minimum standard a manufacturer owes to buyers making thousands-of-dollars purchasing decisions.