Geometry ?
Cipollini RB1K Ad One 2026 geometry in sizes XS–XL: stack 508–564 mm, reach 370–406 mm, head angle 71.1–73.4°.
| XS | S | M | XL | |
|---|---|---|---|---|
| Stack | 508 mm | 522 mm | 533 mm | 564 mm |
| Reach | 370 mm | 379 mm | 390 mm | 406 mm |
| Head angle | 71.1° | 72° | 72.5° | 73.4° |
| Seat angle | 74.6° | 74.2° | 73.8° | 73.3° |
| Seat tube (?) | 454 mm | 473 mm | 494 mm | 528 mm |
| Head tube | 105 mm | 116 mm | 126 mm | 159 mm |
| Top tube (effective) | 510 mm | 527 mm | 545 mm | 575 mm |
| BB drop | 72 mm | 72 mm | 72 mm | 68 mm |
| Chainstay | 410 mm | 410 mm | 410 mm | 410 mm |
| Fork offset | 45 mm | 45 mm | 45 mm | 45 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: cdn.shopify.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 XS (stack 508 / reach 370 mm).
Stack and reach within 12 mm of size S (stack 522 / reach 379 mm).
Stack and reach within 12 mm of size M (stack 533 / reach 390 mm).
Stack and reach within 12 mm of size XL (stack 564 / reach 406 mm).
Spotted a mistake or a missing build? Let me know.
Are you the manufacturer, or do you sell this bike? I’m missing 6 values for this model’s stem and bars. Add them