Compare: 2026 Argon 18 Sum Pro S vs 2024 Winspace Cycle Co T1550 2nd Gen. Base M

Insights

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Argon 18 Sum

Average stack and reach vs trend of performance road bikes

Bar type unusual for category

This: Aero Bar
Category: Drop Bar

Stack	540mm	534.9mm -5.1mm
Reach	382mm	381mm -1mm
Stack to Reach Ratio	1.41:1	1.4:1
Seat Tube Length, C-TTT	—	490mm
Seat Tube Length, Unknown	460mm	—
Top Tube Length, Effective/Horizontal Center	—	534.4mm
Top Tube Length, Effective/Horizontal Unknown	538mm	—
Top Tube Slope	10.9deg	4.9deg -6deg
Head Tube Angle	72.7deg	72deg -0.7deg
Seat Tube Angle	74deg	74deg +0deg
Head Tube Length	126mm	130mm +4mm
Bottom Bracket Drop	77mm	72mm -5mm
Bottom Bracket Height	259mm	267mm +8mm
Chainstay Length	410mm	408mm -2mm
Chainstay Length Horizontal	402.7mm	401.6mm -1.1mm
Front-Center	577.5mm	582.1mm +4.6mm
Front-Center Horizontal	572.3mm	577.7mm +5.4mm
Wheelbase	975mm	979.3mm +4.3mm
Fork Offset/Rake	44mm	44mm +0mm
Fork Length, Unknown	374mm	370mm -4mm
Trail	58.6mm mid/neutral	63.9mm +5.3mm mid/neutral
Mechanical Trail	55.9mm	60.8mm +4.9mm
Wheel Flop	16.6mm	18.8mm +2.2mm
Standover Height	—	775mm
Tire to Pedal Spindle	71.5mm 170 mm cranks	73.1mm +1.6mm 170 mm cranks
Pedal Spindle to Ground Clearance	89mm 170 mm cranks	97mm +8mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	25mm	28mm +3mm
Tire Width Max	32mm	32mm +0mm
Tire Outer Diameter	672mm	678mm +6mm
Bike Length with Tires	1647mm	1657.3mm +10.3mm
Crank Length	170mm	—
Handlebar Width	42cm	—
Stem Length	90mm	—
Suspension Type	Rigid, non-suspension corrected	Rigid, non-suspension corrected
Bar Type	Drop Bar	Aero Bar
Frame Material	Carbon/Composite	Carbon/Composite
Fork Material	Carbon/Composite	Carbon/Composite
Brake Type	Disc	Disc