Compare: 2026 Argon 18 Nitrogen Base XL vs 2024 Speeder Cycling SC-R55D Base 560

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 Speeder Cycling SC-R55D

Stack	607mm	583mm -24mm
Reach	409mm	406mm -3mm
Stack to Reach Ratio	1.48:1	1.44:1
Seat Tube Length, C-T	—	560mm
Seat Tube Length, C-TTT	595mm	—
Top Tube Length, Effective/Horizontal Center	601mm	—
Top Tube Length, Effective/Horizontal Unknown	—	584mm
Top Tube Slope	2deg	4.8deg +2.8deg
Head Tube Angle	73deg	72.5deg -0.5deg
Seat Tube Angle	72.5deg	73deg +0.5deg
Head Tube Length	192mm	180mm -12mm
Bottom Bracket Drop	79mm	70mm -9mm
Bottom Bracket Height	262mm	269mm +7mm
Chainstay Length	410mm	410mm +0mm
Chainstay Length Horizontal	402.3mm	404mm +1.7mm
Front-Center	622.7mm	620mm -2.7mm
Front-Center Horizontal	617.7mm	616mm -1.7mm
Wheelbase	1020mm	1020mm +0mm
Fork Offset/Rake	45mm	46mm +1mm
Fork Length (Axle-To-Crown)	376mm	370mm -6mm
Trail	57.2mm mid/neutral	58.7mm +1.5mm mid/neutral
Mechanical Trail	54.7mm	55.9mm +1.2mm
Wheel Flop	16mm	16.8mm +0.8mm
Tire to Pedal Spindle	109.2mm 172.5 mm cranks	111mm +1.8mm 170 mm cranks
Pedal Spindle to Ground Clearance	89.5mm 172.5 mm cranks	99mm +9.5mm 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	1702mm	1698mm -4mm
Crank Length	172.5mm	—
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