Compare: 2025 SPCYCLE SP-R088 Base 56 vs 2026 Argon 18 Nitrogen Base M

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	565mm	555mm -10mm
Reach	395mm	392mm -3mm
Stack to Reach Ratio	1.43:1	1.42:1
Seat Tube Length, C-T	495mm	—
Seat Tube Length, C-TTT	—	505mm
Top Tube Length, Effective/Horizontal Center	—	557mm
Top Tube Length, Effective/Horizontal HT Top	562mm	—
Top Tube Slope	9.6deg	5.5deg -4.1deg
Head Tube Angle	73.5deg	72.7deg -0.8deg
Seat Tube Angle	73.5deg	73.5deg +0deg
Head Tube Length	—	138mm
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	595mm	593mm -2mm
Front-Center Horizontal	589.7mm	587.7mm -2mm
Wheelbase	993mm	990mm -3mm
Fork Offset/Rake	47.3mm	45mm -2.3mm
Fork Length (Axle-To-Crown)	—	376mm
Trail	52.3mm mid/neutral	59.1mm +6.8mm mid/neutral
Mechanical Trail	50.2mm	56.4mm +6.2mm
Wheel Flop	14.2mm	16.8mm +2.6mm
Tire to Pedal Spindle	82mm 170 mm cranks	82mm +0mm 170 mm cranks
Pedal Spindle to Ground Clearance	99mm 170 mm cranks	92mm -7mm 170 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	1679mm	1672mm -7mm
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