2026 De Rosa · RD
2026 De Rosa Idol geometry
Full frame geometry for the 2026 De Rosa Idol, size by size — stack, reach, angles and tube lengths.
Does this bike fit you?
Get sized in minutes — no tape measure, no appointment.
Geometry by size
| Size | Stack (mm) | Reach (mm) | Seat angle (°) | Head angle (°) | Head tube (mm) | Top tube (mm) | Seat tube (mm) | BB drop (mm) | Front centre (mm) | Chainstay (mm) | Wheelbase (mm) | Fork rake (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 433 | 508.3 | 370 | 74.2 | 71.3 | 106.6 | 517 | 433 | 70 | 573.4 | 412 | 969 | 48 |
| 458 | 516.1 | 378.3 | 73.9 | 71.6 | 114.6 | 529 | 458 | 70 | 581.5 | 412 | 979.2 | 48 |
| 483 | 537.1 | 384.2 | 73.6 | 72.6 | 130 | 543 | 483 | 70 | 580 | 412 | 977.7 | 43 |
| 507 | 556.8 | 389.8 | 73 | 73 | 149 | 560 | 507 | 70 | 587.8 | 412 | 987.6 | 43 |
| 534 | 577.1 | 395.6 | 73 | 73.1 | 170 | 572 | 534 | 70 | 598.7 | 412 | 998.6 | 43 |
| 561 | 596.9 | 402.4 | 72.7 | 73.3 | 190 | 588 | 561 | 70 | 609.4 | 412 | 1011.4 | 43 |
All measurements in millimetres unless marked (°) for angles.