Compare: 2026 Argon 18 Nitrogen Base S vs 2024 Speeder Cycling SC-R55D Base 480

Insights

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Argon 18 Nitrogen

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Speeder Cycling SC-R55D

Stack	531mm	526mm -5mm
Reach	384mm	382mm -2mm
Stack to Reach Ratio	1.38:1	1.38:1
Seat Tube Length, C-T	—	480mm
Seat Tube Length, C-TTT	460mm	—
Top Tube Length, Effective/Horizontal Center	537mm	—
Top Tube Length, Effective/Horizontal Unknown	—	528mm
Top Tube Slope	7.7deg	7.1deg -0.6deg
Head Tube Angle	72.7deg	72deg -0.7deg
Seat Tube Angle	74deg	74.5deg +0.5deg
Head Tube Length	113mm	120mm +7mm
Bottom Bracket Drop	79mm	72mm -7mm
Bottom Bracket Height	262mm	267mm +5mm
Chainstay Length	410mm	408mm -2mm
Chainstay Length Horizontal	402.3mm	401.6mm -0.7mm
Front-Center	578.1mm	582mm +3.9mm
Front-Center Horizontal	572.7mm	578.4mm +5.7mm
Wheelbase	975mm	980mm +5mm
Fork Offset/Rake	45mm	46mm +1mm
Fork Length (Axle-To-Crown)	376mm	370mm -6mm
Trail	59.1mm mid/neutral	61.8mm +2.7mm mid/neutral
Mechanical Trail	56.4mm	58.8mm +2.4mm
Wheel Flop	16.8mm	18.2mm +1.4mm
Tire to Pedal Spindle	67.1mm 170 mm cranks	73mm +5.9mm 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	32mm -2mm
Tire Outer Diameter	682mm	678mm -4mm
Bike Length with Tires	1657mm	1658mm +1mm
Crank Length	170mm	—
Handlebar Width	360mm	—
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