Geometry ?
Argonaut RM3 2026 geometry in sizes 480–595: stack 505.5–622.5 mm, reach 335–399.2 mm, head angle 69.5–73.5°.
| 480 | 505 | 515 | 530 | 540 | 545 | 550 | 560 | 565 | 570 | 575 | 580 | 595 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stack | 505.5 mm | 510.6 mm | 520 mm | 540.8 mm | 550.8 mm | 560.4 mm | 563.3 mm | 572.9 mm | 580.5 mm | 586.1 mm | 609.2 mm | 603.3 mm | 622.5 mm |
| Reach | 335 mm | 357.5 mm | 364.8 mm | 367.1 mm | 371.6 mm | 373.7 mm | 377.9 mm | 385 mm | 387.6 mm | 391 mm | 388.9 mm | 395.8 mm | 399.2 mm |
| Head angle | 69.5° | 71.5° | 71.5° | 72° | 73° | 73° | 73.2° | 73.2° | 73.2° | 73.5° | 73.2° | 73.5° | 73.5° |
| Seat angle | 74° | 74° | 74° | 73.5° | 73° | 73° | 73° | 73° | 73° | 73° | 73° | 73° | 72.5° |
| Head tube | 101 mm | 104 mm | 114 mm | 134 mm | 144 mm | 154 mm | 154 mm | 164 mm | 174 mm | 179 mm | 204 mm | 199 mm | 219 mm |
| Top tube (effective) | 476 mm | 505 mm | 515 mm | 528 mm | 540 mm | 545 mm | 550 mm | 560 mm | 565 mm | 570 mm | 575 mm | 580 mm | 595 mm |
| BB drop | 80 mm | 75 mm | 75 mm | 75 mm | 72 mm | 72 mm | 72 mm | 72 mm | 70 mm | 70 mm | 70 mm | 68 mm | 68 mm |
| Chainstay | 408 mm | 408 mm | 408 mm | 408 mm | 408 mm | 408 mm | 408 mm | 408 mm | 408 mm | 408 mm | 408 mm | 408 mm | 408 mm |
| Fork length | 371 mm | 371 mm | 371 mm | 371 mm | 371 mm | 371 mm | 371 mm | 371 mm | 371 mm | 371 mm | 371 mm | 371 mm | 371 mm |
| Fork offset | 50 mm | 50 mm | 50 mm | 50 mm | 50 mm | 50 mm | 43 mm | 43 mm | 43 mm | 43 mm | 43 mm | 43 mm | 43 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
No frame in the database is within 12 mm of size 480 in both stack and reach.
Stack and reach within 12 mm of size 505 (stack 510.6 / reach 357.5 mm).
Stack and reach within 12 mm of size 515 (stack 520 / reach 364.8 mm).
Stack and reach within 12 mm of size 530 (stack 540.8 / reach 367.1 mm).
Stack and reach within 12 mm of size 540 (stack 550.8 / reach 371.6 mm).
Stack and reach within 12 mm of size 545 (stack 560.4 / reach 373.7 mm).
Stack and reach within 12 mm of size 550 (stack 563.3 / reach 377.9 mm).
Stack and reach within 12 mm of size 560 (stack 572.9 / reach 385 mm).
Stack and reach within 12 mm of size 565 (stack 580.5 / reach 387.6 mm).
Stack and reach within 12 mm of size 570 (stack 586.1 / reach 391 mm).
Stack and reach within 12 mm of size 575 (stack 609.2 / reach 388.9 mm).
Stack and reach within 12 mm of size 580 (stack 603.3 / reach 395.8 mm).
Stack and reach within 12 mm of size 595 (stack 622.5 / reach 399.2 mm).
Spotted a mistake or a missing build? Let me know.
Are you the manufacturer, or do you sell this bike? I’m missing 15 values for this model’s stem and bars. Add them