Good to know: Integrated cockpit · Configurable build
Integrated cockpit (a one-piece bar and stem) on at least one build. Changing the length means replacing the whole cockpit, and not every length exists. Check which length the bike actually ships with before you buy.
Configurable build (at least partly: the cockpit or bar width, for example). The stock build below is only one of the options.
Geometry ?
De Rosa Idol 2026 geometry in sizes 433–561: stack 508.3–596.9 mm, reach 370–402.4 mm, head angle 71.3–73.3°.
| 433 | 458 | 483 | 507 | 534 | 561 | |
|---|---|---|---|---|---|---|
| Stack | 508.3 mm | 516.1 mm | 537.1 mm | 556.8 mm | 577.1 mm | 596.9 mm |
| Reach | 370 mm | 378.3 mm | 384.2 mm | 389.8 mm | 395.6 mm | 402.4 mm |
| Head angle | 71.3° | 71.6° | 72.6° | 73° | 73.1° | 73.3° |
| Seat angle | 74.2° | 73.9° | 73.6° | 73° | 73° | 72.7° |
| Head tube | 106.6 mm | 114.6 mm | 130 mm | 149 mm | 170 mm | 190 mm |
| Top tube (effective) | 517 mm | 529 mm | 543 mm | 560 mm | 572 mm | 588 mm |
| BB drop | 70 mm | 70 mm | 70 mm | 70 mm | 70 mm | 70 mm |
| Chainstay | 412 mm | 412 mm | 412 mm | 412 mm | 412 mm | 412 mm |
| Wheelbase | 969 mm | 979.2 mm | 977.7 mm | 987.6 mm | 998.6 mm | 1011.4 mm |
| Fork length | 373 mm | 373 mm | 373 mm | 373 mm | 373 mm | 373 mm |
| Fork offset | 48 mm | 48 mm | 43 mm | 43 mm | 43 mm | 43 mm |
Source: derosa.it, checked 1 Nov 2026 · bar position: worked out from published data
Stock build
Idol (Giro d'Italia edition) €7,000
- Groupset
- Shimano Ultegra Di2 R8100 12s
- Shifters
- Shimano Ultegra Di2 ST-R8170
- Stem
- none
- Handlebar
- Vision Metron 5D SMR
- Seatpost
- Dedicated
- Saddle
- Selle Italia SLR Boost ADV
- List price
- €7,000 (derosa.it, 1 Nov 2026)
Options when ordering (manufacturer’s default in bold):
| Size | Stem | Bar width |
|---|---|---|
| all | 90, 100, 110, 120 mm | 380, 400, 420 mm |
Source: derosa.it, checked 1 Nov 2026
Frames with similar geometry
Stack and reach within 12 mm of size 433 (stack 508.3 / reach 370 mm).
Stack and reach within 12 mm of size 458 (stack 516.1 / reach 378.3 mm).
Stack and reach within 12 mm of size 483 (stack 537.1 / reach 384.2 mm).
Stack and reach within 12 mm of size 507 (stack 556.8 / reach 389.8 mm).
Stack and reach within 12 mm of size 534 (stack 577.1 / reach 395.6 mm).
Stack and reach within 12 mm of size 561 (stack 596.9 / reach 402.4 mm).
Spotted a mistake or a missing build? Let me know.
Are you the manufacturer, or do you sell this bike? I’m missing 7 values for this model’s stem and bars. Add them