Compare: 2026 Argon 18 Nitrogen Base M vs 2024 Speeder Cycling SC-R55D Base 535

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	555mm	559mm +4mm
Reach	392mm	399mm +7mm
Stack to Reach Ratio	1.42:1	1.4:1
Seat Tube Length, C-T	—	535mm
Seat Tube Length, C-TTT	505mm	—
Top Tube Length, Effective/Horizontal Center	557mm	—
Top Tube Length, Effective/Horizontal Unknown	—	565mm
Top Tube Slope	5.5deg	4.8deg -0.7deg
Head Tube Angle	72.7deg	72.5deg -0.2deg
Seat Tube Angle	73.5deg	73.5deg +0deg
Head Tube Length	138mm	155mm +17mm
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	593mm	606mm +13mm
Front-Center Horizontal	587.7mm	601mm +13.3mm
Wheelbase	990mm	1005mm +15mm
Fork Offset/Rake	45mm	46mm +1mm
Fork Length (Axle-To-Crown)	376mm	370mm -6mm
Trail	59.1mm mid/neutral	58.7mm -0.4mm mid/neutral
Mechanical Trail	56.4mm	55.9mm -0.5mm
Wheel Flop	16.8mm	16.8mm +0mm
Tire to Pedal Spindle	82mm 170 mm cranks	97mm +15mm 170 mm cranks
Pedal Spindle to Ground Clearance	92mm 170 mm cranks	99mm +7mm 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	1672mm	1683mm +11mm
Crank Length	170mm	—
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