Compare: 2026 SEKA exaero gr Base 61 vs 2026 Argon 18 Equation Base XL 60-62

Insights

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

Design deviates from other sizes of SEKA exaero gr

Somewhat aggressive stack and reach vs trend of endurance road bikes

Design deviates from other sizes of Argon 18 Equation

Stack	620mm	623mm +3mm
Reach	408mm	407mm -1mm
Stack to Reach Ratio	1.52:1	1.53:1
Seat Tube Length, C-T	580mm	590mm +10mm
Top Tube Length, Effective/Horizontal Center	598mm	—
Top Tube Length, Effective/Horizontal HT Top	—	604mm
Top Tube Slope	6.5deg	5.9deg -0.6deg
Head Tube Angle	72.2deg	72.5deg +0.3deg
Seat Tube Angle	73deg	72.5deg -0.5deg
Head Tube Length	195mm	189mm -6mm
Bottom Bracket Drop	70mm	75mm +5mm
Bottom Bracket Height	286mm	264mm -22mm
Chainstay Length	423mm	420mm -3mm
Chainstay Length Horizontal	417.2mm	413.3mm -3.9mm
Front-Center	641mm	634.2mm -6.8mm
Front-Center Horizontal	637.8mm	629.8mm -8mm
Wheelbase	1055mm	1043mm -12mm
Fork Offset/Rake	50mm	47mm -3mm
Fork Length (Axle-To-Crown)	401mm	387mm -14mm
Trail	61.8mm mid/neutral	57.6mm -4.2mm mid/neutral
Mechanical Trail	58.8mm	54.9mm -3.9mm
Wheel Flop	18mm	16.5mm -1.5mm
Standover Height	858mm	827mm -31mm
Tire to Pedal Spindle	115mm 170 mm cranks	125.2mm +10.2mm 170 mm cranks
Pedal Spindle to Ground Clearance	116mm 170 mm cranks	94mm -22mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	45mm	28mm -17mm
Tire Width Max	52mm	—
Tire Outer Diameter	712mm	678mm -34mm
Bike Length with Tires	1767mm	1721mm -46mm
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