Geometry ?
Argonaut GR3 2026 geometry in sizes 505–605: stack 515–635 mm, reach 357–411 mm, head angle 68–68.5°.
| 505 | 515 | 530 | 545 | 560 | 575 | 590 | 605 | |
|---|---|---|---|---|---|---|---|---|
| Stack | 515 mm | 527 mm | 546 mm | 562 mm | 571 mm | 581 mm | 611 mm | 635 mm |
| Reach | 357 mm | 364 mm | 374 mm | 379 mm | 385 mm | 397 mm | 403 mm | 411 mm |
| Head angle | 68° | 68.5° | 68.5° | 68.5° | 68.5° | 68.5° | 68.5° | 68.5° |
| Seat angle | 74° | 74° | 74° | 73.5° | 73° | 73° | 73° | 73° |
| Head tube | 100 mm | 110 mm | 130 mm | 150 mm | 160 mm | 170 mm | 205 mm | 230 mm |
| Top tube (effective) | 505 mm | 515 mm | 530 mm | 545 mm | 560 mm | 575 mm | 590 mm | 605 mm |
| BB drop | 77 mm | 77 mm | 77 mm | 75 mm | 75 mm | 75 mm | 73 mm | 73 mm |
| Chainstay | 415 mm | 415 mm | 415 mm | 415 mm | 415 mm | 415 mm | 415 mm | 415 mm |
| Fork length | 395 mm | 395 mm | 395 mm | 395 mm | 395 mm | 395 mm | 395 mm | 395 mm |
| Fork offset | 57 mm | 57 mm | 57 mm | 57 mm | 57 mm | 57 mm | 57 mm | 57 mm |
Source: argonautcycles.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 505 (stack 515 / reach 357 mm).
Stack and reach within 12 mm of size 515 (stack 527 / reach 364 mm).
Stack and reach within 12 mm of size 530 (stack 546 / reach 374 mm).
Stack and reach within 12 mm of size 545 (stack 562 / reach 379 mm).
Stack and reach within 12 mm of size 560 (stack 571 / reach 385 mm).
Stack and reach within 12 mm of size 575 (stack 581 / reach 397 mm).
Stack and reach within 12 mm of size 590 (stack 611 / reach 403 mm).
Stack and reach within 12 mm of size 605 (stack 635 / reach 411 mm).
Spotted a mistake or a missing build? Let me know.
Are you the manufacturer, or do you sell this bike? I’m missing 10 values for this model’s stem and bars. Add them