Compare: 2023 Seaboard GR02 Base 56 vs 2022 Argon 18 Grey Matter 0mm Head Tube Extension M (54-56)

Insights

Average stack and reach vs trend of all-road/gravel bikes

Design deviates from other sizes of Argon 18 Grey Matter

Stack	591mm	585mm -6mm
Reach	388mm	388mm +0mm
Stack to Reach Ratio	1.52:1	1.51:1
Seat Tube Length, C-T	—	520mm
Seat Tube Length, Unknown	560mm	—
Top Tube Length, Effective/Horizontal Center	—	560mm
Top Tube Length, Effective/Horizontal Unknown	557.5mm	—
Top Tube Slope	5.6deg	9.1deg +3.5deg
Head Tube Angle	72deg	72deg +0deg
Seat Tube Angle	74deg	73.7deg -0.3deg
Head Tube Length	175mm	160mm -15mm
Bottom Bracket Drop	70mm	75mm +5mm
Bottom Bracket Height	278mm	274mm -4mm
Chainstay Length	425mm	428mm +3mm
Chainstay Length Horizontal	419.2mm	421.4mm +2.2mm
Front-Center	608.6mm	610.3mm +1.7mm
Front-Center Horizontal	604.6mm	605.6mm +1mm
Wheelbase	1023.8mm	1027mm +3.2mm
Fork Offset/Rake	45mm	49.4mm +4.4mm
Trail	65.8mm high	61.5mm -4.3mm mid/neutral
Mechanical Trail	62.5mm	58.5mm -4mm
Wheel Flop	19.3mm	18.1mm -1.2mm
Standover Height	—	783mm
Tire to Pedal Spindle	90.6mm 170 mm cranks	88.8mm -1.8mm 172.5 mm cranks
Pedal Spindle to Ground Clearance	108mm 170 mm cranks	101.5mm -6.5mm 172.5 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	37mm	38mm +1mm
Tire Width Max	40mm	42mm +2mm
Tire Outer Diameter	696mm	698mm +2mm
Bike Length with Tires	1719.8mm	1725mm +5.2mm
Crank Length	—	172.5mm
Handlebar Width	—	44cm
Stem Length	—	100mm
Stem Angle	—	6deg
Suspension Type	Rigid, non-suspension corrected	Rigid, non-suspension corrected
Bar Type	Drop Bar	Drop Bar
Frame Material	Aluminum	Aluminum
Fork Material	Carbon/Composite	Carbon/Composite
Brake Type	Disc	Disc

Actions	Collection I've Ridden	Collection I've Ridden
Source	tsunamibicycle.com	www.argon18.com
Brand	Seaboard	Argon 18
Bike	2023 GR02 Base	2022 Grey Matter 0mm Head Tube Extension
Size	56	M (54-56)
Category	All-road/Gravel	All-road/Gravel