2026 Argon 18 Nitrogen Base
- Category
- Performance Road
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Carbon/Composite
- Fork
- Carbon/Composite
- Features
- Disc brake
Geometry
XXS | XS | S | M | L | XL | |
Stack | 486mm | 508mm | 531mm | 555mm | 580mm | 607mm |
Reach | 370mm | 377mm | 384mm | 392mm | 400mm | 409mm |
Stack to Reach Ratio | 1.31:1 | 1.35:1 | 1.38:1 | 1.42:1 | 1.45:1 | 1.48:1 |
Seat Tube Length, C-TTT | 395mm | 425mm | 460mm | 505mm | 550mm | 595mm |
Top Tube Length, Effective/Horizontal Center | 502mm | 519mm | 537mm | 557mm | 578mm | 601mm |
Top Tube Slope | 10.1deg | 9.1deg | 7.7deg | 5.5deg | 3.5deg | 2deg |
Head Tube Angle | 71.2deg | 72.1deg | 72.7deg | 72.7deg | 72.7deg | 73deg |
Seat Tube Angle | 75deg | 74.5deg | 74deg | 73.5deg | 73deg | 72.5deg |
Head Tube Length | 81mm | 97mm | 113mm | 138mm | 165mm | 192mm |
Bottom Bracket Drop | 71mm | 75mm | 79mm | 79mm | 79mm | 79mm |
Bottom Bracket Height | 270mm | 266mm | 262mm | 262mm | 262mm | 262mm |
Chainstay Length | 410mm | 410mm | 410mm | 410mm | 410mm | 410mm |
Chainstay Length Horizontal | 403.8mm | 403.1mm | 402.3mm | 402.3mm | 402.3mm | 402.3mm |
Front-Center | 567.7mm | 573.8mm | 578.1mm | 593mm | 608.8mm | 622.7mm |
Front-Center Horizontal | 563.2mm | 568.9mm | 572.7mm | 587.7mm | 603.7mm | 617.7mm |
Wheelbase | 967mm | 972mm | 975mm | 990mm | 1006mm | 1020mm |
Fork Offset/Rake | 49mm | 49mm | 45mm | 45mm | 45mm | 45mm |
Fork Length (Axle-To-Crown) | 376mm | 376mm | 376mm | 376mm | 376mm | 376mm |
Trail | 64.3mm mid/neutral | 58.7mm mid/neutral | 59.1mm mid/neutral | 59.1mm mid/neutral | 59.1mm mid/neutral | 57.2mm mid/neutral |
Mechanical Trail | 60.9mm | 55.8mm | 56.4mm | 56.4mm | 56.4mm | 54.7mm |
Wheel Flop | 19.6mm | 17.2mm | 16.8mm | 16.8mm | 16.8mm | 16mm |
Tire to Pedal Spindle | 61.7mm 165 mm cranks | 67.8mm 165 mm cranks | 67.1mm 170 mm cranks | 82mm 170 mm cranks | 95.3mm 172.5 mm cranks | 109.2mm 172.5 mm cranks |
Pedal Spindle to Ground Clearance | 105mm 165 mm cranks | 101mm 165 mm cranks | 92mm 170 mm cranks | 92mm 170 mm cranks | 89.5mm 172.5 mm cranks | 89.5mm 172.5 mm cranks |
Base Build
XXS | XS | S | M | L | XL | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm |
Tire Width Max | 34mm | 34mm | 34mm | 34mm | 34mm | 34mm |
Tire Outer Diameter | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm |
Bike Length with Tires | 1649mm | 1654mm | 1657mm | 1672mm | 1688mm | 1702mm |
Crank Length | 165mm | 165mm | 170mm | 170mm | 172.5mm | 172.5mm |
Handlebar Width | 360mm | 369mm | 360mm | 380mm | 380mm | 380mm |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
Performance RoadSource:https://www.argon18.com/en-us/bikes/road/nitrogen/nitrogen-force-axs