Compare: 2025 Sava Starship Base 580 (XL) vs 2026 Argon 18 Sum Pro XL

Insights

Somewhat aggressive stack and reach vs trend of performance road bikes

Design deviates from other sizes of Sava Starship

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Argon 18 Sum

Stack	580.5mm	616mm +35.5mm
Reach	405mm	407mm +2mm
Stack to Reach Ratio	1.43:1	1.51:1
Seat Tube Length, Unknown	517mm	595mm +78mm
Top Tube Length, Effective/Horizontal Unknown	577mm	600mm +23mm
Top Tube Slope	8.7deg	4.7deg -4deg
Head Tube Angle	73.5deg	73deg -0.5deg
Seat Tube Angle	73.5deg	72.5deg -1deg
Head Tube Length	178mm	205mm +27mm
Bottom Bracket Drop	72mm	77mm +5mm
Bottom Bracket Height	267mm	259mm -8mm
Chainstay Length	410mm	410mm +0mm
Chainstay Length Horizontal	403.6mm	402.7mm -0.9mm
Front-Center	612mm	622.1mm +10.1mm
Front-Center Horizontal	607.9mm	617.3mm +9.4mm
Wheelbase	1011.5mm	1020mm +8.5mm
Fork Offset/Rake	50mm	44mm -6mm
Fork Length, Unknown	368mm	374mm +6mm
Trail	48.3mm mid/neutral	56.7mm +8.4mm mid/neutral
Mechanical Trail	46.3mm	54.2mm +7.9mm
Wheel Flop	13.1mm	15.9mm +2.8mm
Standover Height	803mm	—
Tire to Pedal Spindle	103mm 170 mm cranks	111.1mm +8.1mm 175 mm cranks
Pedal Spindle to Ground Clearance	97mm 170 mm cranks	84mm -13mm 175 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	28mm	25mm -3mm
Tire Width Max	—	32mm
Tire Outer Diameter	678mm	672mm -6mm
Bike Length with Tires	1689.5mm	1692mm +2.5mm
Crank Length	—	175mm
Handlebar Width	—	44cm
Stem Length	—	120mm
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