Compare: 2026 Argon 18 Nitrogen Base M vs 2025 Sava Starship Base 560 (L)

Insights

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Argon 18 Nitrogen

Somewhat aggressive stack and reach vs trend of performance road bikes

Design deviates from other sizes of Sava Starship

Stack	555mm	554.5mm -0.5mm
Reach	392mm	398mm +6mm
Stack to Reach Ratio	1.42:1	1.39:1
Seat Tube Length, C-TTT	505mm	—
Seat Tube Length, Unknown	—	496mm
Top Tube Length, Effective/Horizontal Center	557mm	—
Top Tube Length, Effective/Horizontal Unknown	—	562mm
Top Tube Slope	5.5deg	8.3deg +2.8deg
Head Tube Angle	72.7deg	73.5deg +0.8deg
Seat Tube Angle	73.5deg	73.5deg +0deg
Head Tube Length	138mm	151mm +13mm
Bottom Bracket Drop	79mm	72mm -7mm
Bottom Bracket Height	262mm	267mm +5mm
Chainstay Length	410mm	410mm +0mm
Chainstay Length Horizontal	402.3mm	403.6mm +1.3mm
Front-Center	593mm	597.4mm +4.4mm
Front-Center Horizontal	587.7mm	593.1mm +5.4mm
Wheelbase	990mm	996.7mm +6.7mm
Fork Offset/Rake	45mm	50mm +5mm
Fork Length (Axle-To-Crown)	376mm	—
Fork Length, Unknown	—	368mm
Trail	59.1mm mid/neutral	48.3mm -10.8mm mid/neutral
Mechanical Trail	56.4mm	46.3mm -10.1mm
Wheel Flop	16.8mm	13.1mm -3.7mm
Standover Height	—	780mm
Tire to Pedal Spindle	82mm 170 mm cranks	88.4mm +6.4mm 170 mm cranks
Pedal Spindle to Ground Clearance	92mm 170 mm cranks	97mm +5mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	30mm	28mm -2mm
Tire Width Max	34mm	—
Tire Outer Diameter	682mm	678mm -4mm
Bike Length with Tires	1672mm	1674.7mm +2.7mm
Crank Length	170mm	—
Handlebar Width	380mm	—
Suspension Type	Rigid, non-suspension corrected	Rigid, non-suspension corrected
Bar Type	Drop Bar	Drop Bar
Frame Material	Carbon/Composite	Carbon/Composite
Fork Material	Carbon/Composite	Carbon/Composite
Brake Type	Disc	Disc