Compare: 2025 Sava Starship Base 490 (XS) vs 2026 Argon 18 Sum Pro XXS

Insights

Average 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	509.3mm	495mm -14.3mm
Reach	376.3mm	367mm -9.3mm
Stack to Reach Ratio	1.35:1	1.35:1
Seat Tube Length, Unknown	447mm	395mm -52mm
Top Tube Length, Effective/Horizontal Unknown	518mm	503mm -15mm
Top Tube Slope	9deg	13.6deg +4.6deg
Head Tube Angle	71.75deg	71.2deg -0.55deg
Seat Tube Angle	74.5deg	75deg +0.5deg
Head Tube Length	110mm	94mm -16mm
Bottom Bracket Drop	72mm	69mm -3mm
Bottom Bracket Height	267mm	267mm +0mm
Chainstay Length	410mm	410mm +0mm
Chainstay Length Horizontal	403.6mm	404.2mm +0.6mm
Front-Center	577.7mm	567.1mm -10.6mm
Front-Center Horizontal	573.4mm	562.9mm -10.5mm
Wheelbase	977mm	967mm -10mm
Fork Offset/Rake	50mm	48mm -2mm
Fork Length, Unknown	368mm	374mm +6mm
Trail	59.1mm mid/neutral	63.7mm +4.6mm mid/neutral
Mechanical Trail	56.2mm	60.3mm +4.1mm
Wheel Flop	17.6mm	19.4mm +1.8mm
Standover Height	732mm	—
Tire to Pedal Spindle	68.7mm 170 mm cranks	66.1mm -2.6mm 165 mm cranks
Pedal Spindle to Ground Clearance	97mm 170 mm cranks	102mm +5mm 165 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	1655mm	1639mm -16mm
Crank Length	—	165mm
Handlebar Width	—	40cm
Stem Length	—	70mm
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