Compare: 2025 SPCYCLE SP-R088 Base 56 vs 2026 Argon 18 Sum Pro 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 Sum

Stack	565mm	564mm -1mm
Reach	395mm	390mm -5mm
Stack to Reach Ratio	1.43:1	1.45:1
Seat Tube Length, C-T	495mm	—
Seat Tube Length, Unknown	—	505mm
Top Tube Length, Effective/Horizontal HT Top	562mm	—
Top Tube Length, Effective/Horizontal Unknown	—	557mm
Top Tube Slope	9.6deg	8.5deg -1.1deg
Head Tube Angle	73.5deg	72.7deg -0.8deg
Seat Tube Angle	73.5deg	73.5deg +0deg
Head Tube Length	—	151mm
Bottom Bracket Drop	74mm	77mm +3mm
Bottom Bracket Height	269mm	259mm -10mm
Chainstay Length	410mm	410mm +0mm
Chainstay Length Horizontal	403.3mm	402.7mm -0.6mm
Front-Center	595mm	592.3mm -2.7mm
Front-Center Horizontal	589.7mm	587.3mm -2.4mm
Wheelbase	993mm	990mm -3mm
Fork Offset/Rake	47.3mm	44mm -3.3mm
Fork Length, Unknown	—	374mm
Trail	52.3mm mid/neutral	58.6mm +6.3mm mid/neutral
Mechanical Trail	50.2mm	55.9mm +5.7mm
Wheel Flop	14.2mm	16.6mm +2.4mm
Tire to Pedal Spindle	82mm 170 mm cranks	83.8mm +1.8mm 172.5 mm cranks
Pedal Spindle to Ground Clearance	99mm 170 mm cranks	86.5mm -12.5mm 172.5 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	32mm	25mm -7mm
Tire Width Max	—	32mm
Tire Outer Diameter	686mm	672mm -14mm
Bike Length with Tires	1679mm	1662mm -17mm
Crank Length	—	172.5mm
Handlebar Width	—	44cm
Stem Length	—	100mm
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