Compare: 2026 Argon 18 Sum Pro XXS vs 2023 Bigrock Sohtea Base XXS 45

Insights

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Argon 18 Sum

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Bigrock Sohtea

Stack	495mm	502mm +7mm
Reach	367mm	365mm -2mm
Stack to Reach Ratio	1.35:1	1.38:1
Seat Tube Length, C-T	—	400mm
Seat Tube Length, Unknown	395mm	—
Top Tube Length, Effective/Horizontal Center	—	490mm
Top Tube Length, Effective/Horizontal Unknown	503mm	—
Top Tube Slope	13.6deg	13.9deg +0.3deg
Head Tube Angle	71.2deg	70.5deg -0.7deg
Seat Tube Angle	75deg	76deg +1deg
Head Tube Length	94mm	102mm +8mm
Bottom Bracket Drop	69mm	74mm +5mm
Bottom Bracket Height	267mm	267mm +0mm
Chainstay Length	410mm	410mm +0mm
Chainstay Length Horizontal	404.2mm	403.3mm -0.9mm
Front-Center	567.1mm	571mm +3.9mm
Front-Center Horizontal	562.9mm	566.7mm +3.8mm
Wheelbase	967mm	970mm +3mm
Fork Offset/Rake	48mm	47mm -1mm
Fork Length, Unknown	374mm	369mm -5mm
Trail	63.7mm mid/neutral	70.9mm +7.2mm high
Mechanical Trail	60.3mm	66.8mm +6.5mm
Wheel Flop	19.4mm	22.3mm +2.9mm
Tire to Pedal Spindle	66.1mm 165 mm cranks	60mm -6.1mm 170 mm cranks
Pedal Spindle to Ground Clearance	102mm 165 mm cranks	97mm -5mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	25mm	30mm +5mm
Tire Width Max	32mm	—
Tire Outer Diameter	672mm	682mm +10mm
Bike Length with Tires	1639mm	1652mm +13mm
Crank Length	165mm	—
Handlebar Width	40cm	—
Stem Length	70mm	—
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