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

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	607mm +24mm
Reach	406mm	409mm +3mm
Stack to Reach Ratio	1.44:1	1.48:1
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	4.8deg	2deg -2.8deg
Head Tube Angle	72.5deg	73deg +0.5deg
Seat Tube Angle	73deg	72.5deg -0.5deg
Head Tube Length	180mm	192mm +12mm
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	622.7mm +2.7mm
Front-Center Horizontal	616mm	617.7mm +1.7mm
Wheelbase	1020mm	1020mm +0mm
Fork Offset/Rake	46mm	45mm -1mm
Fork Length (Axle-To-Crown)	370mm	376mm +6mm
Trail	58.7mm mid/neutral	57.2mm -1.5mm mid/neutral
Mechanical Trail	55.9mm	54.7mm -1.2mm
Wheel Flop	16.8mm	16mm -0.8mm
Tire to Pedal Spindle	111mm 170 mm cranks	109.2mm -1.8mm 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	1702mm +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