Compare: 2026 Argon 18 Dark Matter 3D High Stack L vs 2025 ASSISTING FORCE AF01 Base XL

Insights

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

Design deviates from other sizes of Argon 18 Dark Matter

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

Design deviates from other sizes of ASSISTING FORCE AF01

Stack	627mm	624mm -3mm
Reach	410mm	402mm -8mm
Stack to Reach Ratio	1.53:1	1.55:1
Seat Tube Length, C-T	540mm	—
Seat Tube Length, Unknown	—	511mm
Top Tube Length, Effective/Horizontal HT Top	602mm	—
Top Tube Length, Effective/Horizontal Unknown	—	593mm
Top Tube Slope	11deg	13.8deg +2.8deg
Head Tube Angle	71deg	71.5deg +0.5deg
Seat Tube Angle	73.1deg	73deg -0.1deg
Head Tube Length	176mm	200mm +24mm
Bottom Bracket Drop	76mm	76mm +0mm
Bottom Bracket Height	285mm	277mm -8mm
Chainstay Length	436mm	425mm -11mm
Chainstay Length Horizontal	429.3mm	418.2mm -11.1mm
Front-Center	655.1mm	648mm -7.1mm
Front-Center Horizontal	650.7mm	642.9mm -7.8mm
Wheelbase	1080mm	1061mm -19mm
Fork Offset/Rake	48mm	55mm +7mm
Fork Length (Axle-To-Crown)	425mm	—
Fork Length, Unknown	—	395mm
Trail	73.5mm high	60.1mm -13.4mm mid/neutral
Mechanical Trail	69.5mm	57mm -12.5mm
Wheel Flop	22.6mm	18.1mm -4.5mm
Standover Height	825mm	—
Tire to Pedal Spindle	124.1mm 170 mm cranks	125mm +0.9mm 170 mm cranks
Pedal Spindle to Ground Clearance	115mm 170 mm cranks	107mm -8mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	50mm	42mm -8mm
Tire Width Max	57mm	50mm -7mm
Tire Outer Diameter	722mm	706mm -16mm
Bike Length with Tires	1802mm	1767mm -35mm
Suspension Type	Rigid, 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