Compare: 2026 Argon 18 Anti Matter Base XL vs 2026 evolve CIMA GR Base L

Insights

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

Design deviates from other sizes of Argon 18 Anti Matter

Somewhat upright stack and reach vs trend of progressive gravel bikes

Design deviates from other sizes of evolve CIMA GR

Stack	607mm	605mm -2mm
Reach	409mm	402mm -7mm
Stack to Reach Ratio	1.48:1	1.5:1
Seat Tube Length, C-T	595mm	—
Seat Tube Length, C-TTT	—	535mm
Top Tube Length, Effective/Horizontal HT Top	601mm	—
Top Tube Length, Effective/Horizontal Unknown	—	581mm
Top Tube Slope	3.9deg	7.4deg +3.5deg
Head Tube Angle	72.2deg	72deg -0.2deg
Seat Tube Angle	72.5deg	73.5deg +1deg
Head Tube Length	176mm	174mm -2mm
Bottom Bracket Drop	76mm	78mm +2mm
Bottom Bracket Height	280mm	283mm +3mm
Chainstay Length	425mm	425mm +0mm
Chainstay Length Horizontal	418.2mm	417.8mm -0.4mm
Front-Center	638.4mm	631mm -7.4mm
Front-Center Horizontal	633.9mm	626.2mm -7.7mm
Wheelbase	1052mm	1044mm -8mm
Fork Offset/Rake	51mm	50mm -1mm
Fork Length (Axle-To-Crown)	400mm	395mm -5mm
Trail	60.7mm mid/neutral	64.7mm +4mm mid/neutral
Mechanical Trail	57.8mm	61.6mm +3.8mm
Wheel Flop	17.7mm	19mm +1.3mm
Standover Height	866mm	833mm -33mm
Tire to Pedal Spindle	112.4mm 170 mm cranks	100mm -12.4mm 170 mm cranks
Pedal Spindle to Ground Clearance	110mm 170 mm cranks	113mm +3mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	45mm	50mm +5mm
Tire Width Max	55mm	—
Tire Outer Diameter	712mm	722mm +10mm
Bike Length with Tires	1764mm	1766mm +2mm
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