Compare: 2022 Argon 18 Grey Matter 0mm Head Tube Extension XS (47-50) vs 2026 SEKA exaero gr Base 52

Insights

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

Design deviates from other sizes of Argon 18 Grey Matter

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

Design deviates from other sizes of SEKA exaero gr

Stack	545mm	540mm -5mm
Reach	368mm	375mm +7mm
Stack to Reach Ratio	1.48:1	1.44:1
Seat Tube Length, C-T	450mm	490mm +40mm
Top Tube Length, Effective/Horizontal Center	517mm	526mm +9mm
Top Tube Slope	12.8deg	7.7deg -5.1deg
Head Tube Angle	71deg	71deg +0deg
Seat Tube Angle	74.9deg	74.3deg -0.6deg
Head Tube Length	119mm	111mm -8mm
Bottom Bracket Drop	80mm	74mm -6mm
Bottom Bracket Height	269mm	282mm +13mm
Chainstay Length	428mm	423mm -5mm
Chainstay Length Horizontal	420.5mm	416.5mm -4mm
Front-Center	591mm	593mm +2mm
Front-Center Horizontal	585.5mm	588.5mm +3mm
Wheelbase	1006mm	1005mm -1mm
Fork Offset/Rake	54.3mm	50mm -4.3mm
Fork Length (Axle-To-Crown)	—	401mm
Trail	62.7mm mid/neutral	69.7mm +7mm high
Mechanical Trail	59.3mm	65.9mm +6.6mm
Wheel Flop	19.3mm	21.5mm +2.2mm
Standover Height	716mm	771mm +55mm
Tire to Pedal Spindle	72mm 170 mm cranks	67mm -5mm 170 mm cranks
Pedal Spindle to Ground Clearance	99mm 170 mm cranks	112mm +13mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	38mm	45mm +7mm
Tire Width Max	42mm	52mm +10mm
Tire Outer Diameter	698mm	712mm +14mm
Bike Length with Tires	1704mm	1717mm +13mm
Crank Length	170mm	—
Handlebar Width	40cm	—
Stem Length	80mm	—
Stem Angle	6deg	—
Suspension Type	Rigid, non-suspension corrected	Rigid, non-suspension corrected
Bar Type	Drop Bar	Drop Bar
Frame Material	Aluminum	Carbon/Composite
Fork Material	Carbon/Composite	Carbon/Composite
Brake Type	Disc	Disc

Actions	Collection I've Ridden	Collection I've Ridden
Source	www.argon18.com	drive.google.com
Brand	Argon 18	SEKA
Bike	2022 Grey Matter 0mm Head Tube Extension	2026 exaero gr Base
Size	XS (47-50)	52
Category	All-road/Gravel	All-road/Gravel