Compare: 2026 Argon 18 Equation Base S 51-53 vs 2026 XDS X-LAB RS5 Base S

Insights

Average stack and reach vs trend of endurance road bikes

Design deviates from other sizes of Argon 18 Equation

Average stack and reach vs trend of endurance road bikes

Design deviates from other sizes of XDS X-LAB RS5

Stack	558mm	553mm -5mm
Reach	379mm	375mm -4mm
Stack to Reach Ratio	1.47:1	1.47:1
Seat Tube Length, C-T	485mm	480mm -5mm
Top Tube Length, Effective/Horizontal Center	—	530mm
Top Tube Length, Effective/Horizontal HT Top	537mm	—
Top Tube Slope	10.1deg	10.2deg +0.1deg
Head Tube Angle	72deg	72deg +0deg
Seat Tube Angle	74.3deg	74deg -0.3deg
Head Tube Length	120mm	135mm +15mm
Bottom Bracket Drop	78mm	75mm -3mm
Bottom Bracket Height	261mm	268mm +7mm
Chainstay Length	420mm	420mm +0mm
Chainstay Length Horizontal	412.7mm	413.3mm +0.6mm
Front-Center	589.5mm	592mm +2.5mm
Front-Center Horizontal	584.3mm	587.8mm +3.5mm
Wheelbase	997mm	1001mm +4mm
Fork Offset/Rake	47mm	50mm +3mm
Fork Length (On-Axis)	—	386mm
Fork Length (Axle-To-Crown)	387mm	—
Trail	60.7mm mid/neutral	58.9mm -1.8mm mid/neutral
Mechanical Trail	57.8mm	56mm -1.8mm
Wheel Flop	17.9mm	17.3mm -0.6mm
Standover Height	734mm	758mm +24mm
Tire to Pedal Spindle	80.5mm 170 mm cranks	84mm +3.5mm 165 mm cranks
Pedal Spindle to Ground Clearance	91mm 170 mm cranks	103mm +12mm 165 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	28mm	32mm +4mm
Tire Width Max	—	38mm
Tire Outer Diameter	678mm	686mm +8mm
Bike Length with Tires	1675mm	1687mm +12mm
Crank Length	—	165mm
Handlebar Width	—	380mm
Stem Length	—	80mm
Suspension Type	Rigid, non-suspension corrected	Rigid, non-suspension corrected
Bar Type	Drop Bar	Drop Bar
Frame Material	Carbon/Composite	Aluminum
Fork Material	Carbon/Composite	Carbon/Composite
Brake Type	Disc	Disc