Compare: 2025 SPCYCLE SP-R088 Base 58 vs 2026 Argon 18 Nitrogen Base L

Insights

Somewhat aggressive stack and reach vs trend of endurance road bikes

Design deviates from other sizes of SPCYCLE SP-R088

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Argon 18 Nitrogen

Stack	591mm	580mm -11mm
Reach	402mm	400mm -2mm
Stack to Reach Ratio	1.47:1	1.45:1
Seat Tube Length, C-T	516mm	—
Seat Tube Length, C-TTT	—	550mm
Top Tube Length, Effective/Horizontal Center	—	578mm
Top Tube Length, Effective/Horizontal HT Top	577mm	—
Top Tube Slope	10deg	3.5deg -6.5deg
Head Tube Angle	73.5deg	72.7deg -0.8deg
Seat Tube Angle	73.5deg	73deg -0.5deg
Head Tube Length	—	165mm
Bottom Bracket Drop	74mm	79mm +5mm
Bottom Bracket Height	269mm	262mm -7mm
Chainstay Length	410mm	410mm +0mm
Chainstay Length Horizontal	403.3mm	402.3mm -1mm
Front-Center	609mm	608.8mm -0.2mm
Front-Center Horizontal	604.7mm	603.7mm -1mm
Wheelbase	1008mm	1006mm -2mm
Fork Offset/Rake	47.6mm	45mm -2.6mm
Fork Length (Axle-To-Crown)	—	376mm
Trail	52mm mid/neutral	59.1mm +7.1mm mid/neutral
Mechanical Trail	49.9mm	56.4mm +6.5mm
Wheel Flop	14.2mm	16.8mm +2.6mm
Tire to Pedal Spindle	96mm 170 mm cranks	95.3mm -0.7mm 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	32mm	30mm -2mm
Tire Width Max	—	34mm
Tire Outer Diameter	686mm	682mm -4mm
Bike Length with Tires	1694mm	1688mm -6mm
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