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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 43 | 521 mm published | 355 mm published | 70.3 ° derived | 75.3 ° derived | 492 mm derived | 415 mm derived | 980 mm published | 576 mm derived | 72 mm derived | 67.6 mm derived | 52 mm published | green |
| All 3 consistency checks passed | ||||||||||||
| 47 | 539 mm published | 363 mm published | 71.3 ° derived | 74.7 ° derived | 511 mm derived | 415 mm derived | 985 mm published | 581 mm derived | 72 mm derived | 61.2 mm derived | 52 mm published | green |
| All 3 consistency checks passed | ||||||||||||
| 51 | 555 mm published | 370 mm published | 72.0 ° derived | 74.5 ° derived | 524 mm derived | 415 mm derived | 989 mm published | 584 mm derived | 70 mm derived | 58.9 mm derived | 50 mm published | green |
| All 3 consistency checks passed | ||||||||||||
| 54 | 576 mm published | 378 mm published | 72.5 ° derived | 74.0 ° derived | 543 mm derived | 415 mm derived | 999 mm published | 594 mm derived | 70 mm derived | 55.7 mm derived | 50 mm published | green |
| All 3 consistency checks passed | ||||||||||||
| 56 | 595 mm published | 386 mm published | 72.5 ° derived | 73.5 ° derived | 562 mm derived | 415 mm derived | 1013 mm published | 608 mm derived | 70 mm derived | 55.7 mm derived | 50 mm published | green |
| All 3 consistency checks passed | ||||||||||||
| 58 | 614 mm published | 393 mm published | 72.5 ° derived | 73.0 ° derived | 581 mm derived | 417 mm derived | 1028 mm published | 621 mm derived | 70 mm derived | 55.7 mm derived | 50 mm published | green |
| All 3 consistency checks passed | ||||||||||||
| 61 | 633 mm published | 401 mm published | 72.5 ° derived | 73.0 ° derived | 595 mm derived | 417 mm derived | 1042 mm published | 635 mm derived | 70 mm derived | 55.7 mm derived | 50 mm published | green |
| All 3 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 Felt VR endurance road geometry reconciles precisely with the RideDNA engine's forward-model calculations across all seven sizes. Stack, reach, and wheelbase all fall within ±1mm engineering tolerance on every size. The manufacturer's published geometry demonstrates complete internal consistency.