Argon 18 Equation (2026)

endurance road · carbon · sizes XXS–XL · tyres up to 34 mm Manufacturer’s website

Geometry ?

Argon 18 Equation 2026 geometry in sizes XXS–XL: stack 518–623 mm, reach 359–407 mm, head angle 70.3–72.5°.

	XXS	XS	S	M	L	XL
Stack	518 mm	537 mm	558 mm	578 mm	600 mm	623 mm
Reach	359 mm	369 mm	379 mm	388 mm	397 mm	407 mm
Head angle	70.3°	71.3°	72°	72°	72°	72.5°
Seat angle	75.5°	74.9°	74.3°	73.7°	73.1°	72.5°
Seat tube (c-t)	420 mm	450 mm	485 mm	520 mm	555 mm	590 mm
Head tube	84 mm	101 mm	120 mm	141 mm	166 mm	189 mm
Top tube (effective)	496 mm	516 mm	537 mm	558 mm	580 mm	604 mm
BB drop	80 mm	80 mm	78 mm	78 mm	75 mm	75 mm
Chainstay	417 mm	417 mm	420 mm	420 mm	420 mm	420 mm
Wheelbase	981 mm	989 mm	997 mm	1013 mm	1030 mm	1043 mm
Standover	673 mm	700 mm	734 mm	764 mm	797 mm	827 mm
Fork length	387 mm	387 mm	387 mm	387 mm	387 mm	387 mm
Fork offset	52 mm	52 mm	47 mm	47 mm	47 mm	47 mm
Stock build by size
Cranks Equation Shimano 105 Di2	165 mm	165 mm	170 mm	170 mm	172.5 mm	172.5 mm
Cranks Equation Shimano 105	165 mm	170 mm	170 mm	172.5 mm	172.5 mm	175 mm
Stem Equation Shimano 105 Di2	70 mm	80 mm	90 mm	100 mm	110 mm	120 mm
Stem Equation Shimano 105	70 mm	80 mm	90 mm	100 mm	110 mm	110 mm
Bar width Equation Shimano 105 Di2	380 mm	380 mm	380 mm	400 mm	400 mm	420 mm
Bar width Equation Shimano 105	400 mm	400 mm	400 mm	420 mm	420 mm	420 mm
Seatpost setback	20 mm	20 mm	20 mm	20 mm	20 mm	20 mm

Source: argon18.com, checked 1 Nov 2026 · bar position: worked out from published data

Stock build

Equation Shimano 105 Di2 €3,245

Equation Shimano 105 €2,245

Source for all builds: argon18.com, checked 1 Nov 2026

Frames with similar geometry

Stack and reach within 12 mm of size M (stack 578 / reach 388 mm).

Spotted a mistake or a missing build? Let me know.