Geometry ?
Dolan Gxa 2026 geometry in sizes 49cm–61cm: stack 541–624 mm, reach 366–404.2 mm, head angle 70.5–72°.
| 49cm | 52cm | 54cm | 56cm | 58cm | 61cm | |
|---|---|---|---|---|---|---|
| Stack | 541 mm | 560 mm | 572 mm | 592 mm | 609 mm | 624 mm |
| Reach | 366 mm | 370 mm | 371 mm | 380 mm | 383 mm | 404.2 mm |
| Head angle | 70.5° | 71° | 71.5° | 72° | 72° | 72° |
| Seat angle | 74.5° | 74° | 73° | 73° | 72.5° | 73° |
| Seat tube (c-t) | 490 mm | 520 mm | 540 mm | 560 mm | 580 mm | 610 mm |
| Head tube | 120 mm | 140 mm | 150 mm | 170 mm | 190 mm | 210 mm |
| Top tube (effective) | 525 mm | 535 mm | 545 mm | 560 mm | 575 mm | 595 mm |
Source: dolan-bikes.com, checked 12 Nov 2026 · bar position: worked out from published data
An older model year in the archive with the same stack, reach and head angle: 2022. Source: dolan-bikes.com
Stock build
I don’t have the build for each size yet.
Frames with similar geometry
Stack and reach within 12 mm of size 49cm (stack 541 / reach 366 mm).
Stack and reach within 12 mm of size 52cm (stack 560 / reach 370 mm).
Stack and reach within 12 mm of size 54cm (stack 572 / reach 371 mm).
Stack and reach within 12 mm of size 56cm (stack 592 / reach 380 mm).
Stack and reach within 12 mm of size 58cm (stack 609 / reach 383 mm).
Stack and reach within 12 mm of size 61cm (stack 624 / reach 404.2 mm).
Spotted a mistake or a missing build? Let me know.
Are you the manufacturer, or do you sell this bike? I’m missing 8 values for this model’s stem and bars. Add them