Bikes / Argon 18 / Gallium
Argon 18 Gallium 2026 Geometry, Reviews, and Specs
Gallium CS Disc | Best Value Carbon Performance Road Bike | Argon 18Fit and steering
Aggressive fitSlow steeringFast steeringRelaxed fit Argon 18 Gallium 2026 Sizing Guide
Argon 18 Gallium 2026 Geometry Chart
| Size | Stack | Reach | Stack/reach | Stem | Bar | Crank | Head tube angle | Seat tube angle | Chainstay | Wheelbase | BB drop | Wheel size |
|---|
| XS | 505 mm | 375 mm | 1.35:1 | 80 mm | 380 mm | 165 mm | 71.5° | 74.5° | 410 mm | 974 mm | 72 mm | 700c |
| S | 523 mm | 381 mm | 1.37:1 | 90 mm | 400 mm | 170 mm | 72.5° | 74.0° | 410 mm | 980 mm | 72 mm | 700c |
| M | 541 mm | 387 mm | 1.40:1 | 100 mm | 420 mm | 172.5 mm | 73.0° | 73.5° | 410 mm | 988 mm | 70 mm | 700c |
| L | 559 mm | 393 mm | 1.42:1 | 110 mm | 440 mm | 175 mm | 73.0° | 73.0° | 410 mm | 998 mm | 70 mm | 700c |
| XL | 577 mm | 399 mm |
2026 colorways
This year's studio shot is Gallium CS Disc | Best Value Carbon Performance Road Bike | Argon 18.
- We do not have a full OEM palette to diff against 2025 yet.
What changed in the bike frame
Same published geometry as 2025.
- Published geometry matches the 2025 Argon 18 Gallium. Same sizes, same stack and reach.
What changed in equipment
No verified spec sheet for 2026 or 2025.
What changed in price
No launch MSRP in the catalog yet.
Compare 2026 and 2025 Argon 18 Gallium side by side
