Compare: 2025 SPCYCLE SP-R088 Base 49 vs 2026 Argon 18 Nitrogen Base XS

Insights

Somewhat aggressive stack and reach vs trend of endurance road bikes

Design deviates from other sizes of SPCYCLE SP-R088

Somewhat aggressive stack and reach vs trend of performance road bikes

Design deviates from other sizes of Argon 18 Nitrogen

Stack	514mm	508mm -6mm
Reach	375mm	377mm +2mm
Stack to Reach Ratio	1.37:1	1.35:1
Seat Tube Length, C-T	446mm	—
Seat Tube Length, C-TTT	—	425mm
Top Tube Length, Effective/Horizontal Center	—	519mm
Top Tube Length, Effective/Horizontal HT Top	508mm	—
Top Tube Slope	9.6deg	9.1deg -0.5deg
Head Tube Angle	71.75deg	72.1deg +0.35deg
Seat Tube Angle	75.5deg	74.5deg -1deg
Head Tube Length	—	97mm
Bottom Bracket Drop	74mm	75mm +1mm
Bottom Bracket Height	269mm	266mm -3mm
Chainstay Length	410mm	410mm +0mm
Chainstay Length Horizontal	403.3mm	403.1mm -0.2mm
Front-Center	575mm	573.8mm -1.2mm
Front-Center Horizontal	569.7mm	568.9mm -0.8mm
Wheelbase	973mm	972mm -1mm
Fork Offset/Rake	47.2mm	49mm +1.8mm
Fork Length (Axle-To-Crown)	—	376mm
Trail	63.5mm mid/neutral	58.7mm -4.8mm mid/neutral
Mechanical Trail	60.3mm	55.8mm -4.5mm
Wheel Flop	18.9mm	17.2mm -1.7mm
Tire to Pedal Spindle	62mm 170 mm cranks	67.8mm +5.8mm 165 mm cranks
Pedal Spindle to Ground Clearance	99mm 170 mm cranks	101mm +2mm 165 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	32mm	30mm -2mm
Tire Width Max	—	34mm
Tire Outer Diameter	686mm	682mm -4mm
Bike Length with Tires	1659mm	1654mm -5mm
Crank Length	—	165mm
Handlebar Width	—	369mm
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