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

Insights

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Bigrock Sohtea

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Argon 18 Sum

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

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	30mm	25mm -5mm
Tire Width Max	—	32mm
Tire Outer Diameter	682mm	672mm -10mm
Bike Length with Tires	1652mm	1639mm -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