Geometry ?
Passoni Cicloprato RTR 2026 geometry in sizes 48–60: stack 547–644 mm, reach 363–405 mm, head angle 69–72°.
| 48 | 50 | 52 | 54 | 56 | 58 | 60 | |
|---|---|---|---|---|---|---|---|
| Stack | 547 mm | 552 mm | 559 mm | 578 mm | 594 mm | 618 mm | 644 mm |
| Reach | 363 mm | 370 mm | 375 mm | 380 mm | 387 mm | 396 mm | 405 mm |
| Head angle | 69° | 69.5° | 70° | 70.5° | 71.5° | 71.5° | 72° |
| Seat angle | 74.5° | 74.5° | 74° | 74° | 74° | 74° | 74° |
| Seat tube (?) | 530 mm | 535 mm | 542 mm | 564 mm | 581 mm | 605 mm | 633 mm |
| Head tube | 134 mm | 137 mm | 142 mm | 160 mm | 173 mm | 198 mm | 224 mm |
| BB drop | 75 mm | 75 mm | 75 mm | 75 mm | 75 mm | 75 mm | 75 mm |
| Chainstay | 430 mm | 430 mm | 430 mm | 430 mm | 430 mm | 430 mm | 430 mm |
| Fork length | 392 mm | 392 mm | 392 mm | 392 mm | 392 mm | 392 mm | 392 mm |
| Fork offset | 52 mm | 52 mm | 52 mm | 52 mm | 52 mm | 52 mm | 52 mm |
(?) by the seat tube length: the manufacturer doesn’t say whether it’s measured centre to centre (c-c) or centre to top (c-t).
Source: passoni.com, checked 13 Nov 2026 · bar position: worked out from published data
Stock build
I don’t have the build for each size yet.
Frames with similar geometry
Stack and reach within 12 mm of size 48 (stack 547 / reach 363 mm).
Stack and reach within 12 mm of size 50 (stack 552 / reach 370 mm).
Stack and reach within 12 mm of size 52 (stack 559 / reach 375 mm).
Stack and reach within 12 mm of size 54 (stack 578 / reach 380 mm).
Stack and reach within 12 mm of size 56 (stack 594 / reach 387 mm).
Stack and reach within 12 mm of size 58 (stack 618 / reach 396 mm).
Stack and reach within 12 mm of size 60 (stack 644 / reach 405 mm).
Spotted a mistake or a missing build? Let me know.
Are you the manufacturer, or do you sell this bike? I’m missing 9 values for this model’s stem and bars. Add them