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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 48 | 535 mm published | 375 mm published | 69.0 ° derived | 75.0 ° derived | 518 mm derived | 435 mm derived | 1036 mm published | 609 mm published | 80 mm derived | 77.7 mm derived | 55 mm published | red |
| 2 of 4 checks flagged — Stack Reconciliation shows 6.1mm discrepancy | ||||||||||||
| 52 | 540 mm published | 390 mm published | 70.5 ° derived | 75.0 ° derived | 534 mm derived | 435 mm derived | 1039 mm published | 611 mm published | 80 mm derived | 67.7 mm derived | 55 mm published | yellow |
| 1 of 4 checks flagged — Front Center Reconciliation shows 4.7mm discrepancy | ||||||||||||
| 54 | 555 mm published | 395 mm published | 70.5 ° derived | 74.0 ° derived | 554 mm derived | 435 mm derived | 1049 mm published | 622 mm published | 80 mm derived | 67.7 mm derived | 55 mm published | yellow |
| 1 of 4 checks flagged — Front Center Reconciliation shows 4.5mm discrepancy | ||||||||||||
| 56 | 575 mm published | 400 mm published | 70.5 ° derived | 74.0 ° derived | 564 mm derived | 435 mm derived | 1061 mm published | 633 mm published | 80 mm derived | 67.7 mm derived | 55 mm published | yellow |
| 1 of 4 checks flagged — Front Center Reconciliation shows 4.8mm discrepancy | ||||||||||||
| 58 | 595 mm published | 410 mm published | 70.5 ° derived | 74.0 ° derived | 580 mm derived | 435 mm derived | 1078 mm published | 651 mm published | 80 mm derived | 67.7 mm derived | 55 mm published | yellow |
| 1 of 4 checks flagged — Front Center Reconciliation shows 4mm discrepancy | ||||||||||||
| 61 | 615 mm published | 415 mm published | 70.5 ° derived | 74.0 ° derived | 591 mm derived | 435 mm derived | 1090 mm published | 663 mm published | 80 mm derived | 67.7 mm derived | 55 mm published | yellow |
| 1 of 4 checks flagged — Front Center Reconciliation shows 4.3mm discrepancy | ||||||||||||
Overall consistency: red. 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 Allied Able geometry audit reveals a systematic front center discrepancy of 3.8–4.8mm across all six sizes, indicating a data inaccuracy in the published front center values. Size 48 additionally shows a 6.1mm significant data inaccuracy in the published stack value. Reach and wheelbase reconcile within ±1mm engineering tolerance across the entire size run. The seat tube angle progression shows an unusually large 1.0° step between sizes 52 and 54 (75°→74°), which may indicate a transcription anomaly — verification of the affected sizes is recommended.