Frame geometry per size. Basso does not publish rider heights for the Diamante.
| Size | Seat Tube (mm) | Top Tube (mm) | Reach (mm) | Stack (mm) |
|---|---|---|---|---|
| 45 | 450 | 505 | 374.9 | 521.7 |
| 48 | 480 | 515 | 375.2 | 521.8 |
| 51 | 510 | 525 | 378.6 | 546.2 |
| 53 | 530 | 545 | 384.8 | 558.8 |
| 56 | 560 | 560 | 386.9 | 584.3 |
| 58 | 580 | 575 | 389 | 608 |
| 61 | 610 | 590 | 390.7 | 632.2 |
