Geometry ?
Fondriest Ronse 2026 geometry in sizes 49–58: stack 512–584 mm, reach 378–404 mm, head angle 71–72.5°.
| 49 | 52 | 54 | 56 | 58 | |
|---|---|---|---|---|---|
| Stack | 512 mm | 523 mm | 544 mm | 565 mm | 584 mm |
| Reach | 378 mm | 381 mm | 386 mm | 394 mm | 404 mm |
| Head angle | 71° | 71.5° | 72° | 72.5° | 72.5° |
| Seat angle | 75° | 74° | 74° | 73.5° | 73.5° |
| Seat tube (?) | 460 mm | 480 mm | 500 mm | 520 mm | 540 mm |
| Head tube | 105 mm | 115 mm | 135 mm | 155 mm | 175 mm |
| Top tube (effective) | 515 mm | 531 mm | 543 mm | 562 mm | 577 mm |
| BB drop | 72 mm | 72 mm | 72 mm | 72 mm | 72 mm |
| Chainstay | 406 mm | 406 mm | 406 mm | 406 mm | 406 mm |
| Wheelbase | 976 mm | 979 mm | 987 mm | 996 mm | 1012 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: fondriestbici.com, checked 12 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 49 (stack 512 / reach 378 mm).
Stack and reach within 12 mm of size 52 (stack 523 / reach 381 mm).
Stack and reach within 12 mm of size 54 (stack 544 / reach 386 mm).
Stack and reach within 12 mm of size 56 (stack 565 / reach 394 mm).
Stack and reach within 12 mm of size 58 (stack 584 / reach 404 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