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

Insights

Somewhat aggressive stack and reach vs trend of performance road bikes

Design deviates from other sizes of Speeder Cycling SC-R55D

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Argon 18 Nitrogen

Stack	583mm	580mm -3mm
Reach	406mm	400mm -6mm
Stack to Reach Ratio	1.44:1	1.45:1
Seat Tube Length, C-T	560mm	—
Seat Tube Length, C-TTT	—	550mm
Top Tube Length, Effective/Horizontal Center	—	578mm
Top Tube Length, Effective/Horizontal Unknown	584mm	—
Top Tube Slope	4.8deg	3.5deg -1.3deg
Head Tube Angle	72.5deg	72.7deg +0.2deg
Seat Tube Angle	73deg	73deg +0deg
Head Tube Length	180mm	165mm -15mm
Bottom Bracket Drop	70mm	79mm +9mm
Bottom Bracket Height	269mm	262mm -7mm
Chainstay Length	410mm	410mm +0mm
Chainstay Length Horizontal	404mm	402.3mm -1.7mm
Front-Center	620mm	608.8mm -11.2mm
Front-Center Horizontal	616mm	603.7mm -12.3mm
Wheelbase	1020mm	1006mm -14mm
Fork Offset/Rake	46mm	45mm -1mm
Fork Length (Axle-To-Crown)	370mm	376mm +6mm
Trail	58.7mm mid/neutral	59.1mm +0.4mm mid/neutral
Mechanical Trail	55.9mm	56.4mm +0.5mm
Wheel Flop	16.8mm	16.8mm +0mm
Tire to Pedal Spindle	111mm 170 mm cranks	95.3mm -15.7mm 172.5 mm cranks
Pedal Spindle to Ground Clearance	99mm 170 mm cranks	89.5mm -9.5mm 172.5 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	28mm	30mm +2mm
Tire Width Max	32mm	34mm +2mm
Tire Outer Diameter	678mm	682mm +4mm
Bike Length with Tires	1698mm	1688mm -10mm
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