Argon 18 Nitrogen Pro geometry
Argon 18 Nitrogen Pro (carbon road) has 6 published frame sizes. Stack 486–607 mm; reach 370–409 mm. Sources, weights and tyre clearance where available.
Road · carbon · Model year not specified
Measurements
Lengths in mm · Angles in degrees Select + beneath a size to compare
| Frame size | XXS | XS | S | M | L | XL |
|---|---|---|---|---|---|---|
| Stack mm | 486 | 508 | 531 | 555 | 580 | 607 |
| Reach mm | 370 | 377 | 384 | 392 | 400 | 409 |
| Effective top tube mm | — | — | — | — | — | — |
| Seat tube length mm | 395 | 425 | 460 | 505 | 550 | 595 |
| Head tube length mm | 81 | 97 | 113 | 138 | 165 | 192 |
| Head tube angle ° | 71.2 | 72.1 | 72.7 | 72.7 | 72.7 | 73 |
| Seat tube angle ° | 75 | 74.5 | 74 | 73.5 | 73 | 72.5 |
| Chainstay length mm | 410 | 410 | 410 | 410 | 410 | 410 |
| Wheelbase mm | 967 | 972 | 975 | 990 | 1006 | 1020 |
| Bottom bracket drop mm | 71 | 75 | 79 | 79 | 79 | 79 |
| Bottom bracket height mm | — | — | — | — | — | — |
| Fork length mm | 376 | 376 | 376 | 376 | 376 | 376 |
| Fork offset mm | 49 | 49 | 45 | 45 | 45 | 45 |
| Trail mm | — | — | — | — | — | — |
| Standover height mm | 682 | 706 | 734 | 772 | 810 | 848 |
| Front centre mm | — | — | — | — | — | — |
— Not published in the collected chart. Size labels follow the manufacturer.
Frame and fork weight
- Argon 18 states the painted medium Nitrogen Pro frame weighs less than 950 g and the painted medium fork less than 415 g. These are upper bounds, not exact measured weights; see the manufacturer white paper in Sources.
Tyre clearance
Not verified for this frame.
Sources
Reviewed 2026-10-01
Measurement and frame notes
- Baseline/0 mm 3D stack and reach are used where the maker publishes multiple 3D front-end settings; other 3D settings are not separate frame sizes.