Compare: 2024 Bigrock Aero Base 57 vs 2026 Argon 18 Nitrogen Base M

Insights

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Bigrock Aero

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Argon 18 Nitrogen

Stack	557mm	555mm -2mm
Reach	391mm	392mm +1mm
Stack to Reach Ratio	1.42:1	1.42:1
Seat Tube Length, C-TTT	500mm	505mm +5mm
Top Tube Length, Effective/Horizontal Center	—	557mm
Top Tube Length, Effective/Horizontal HT Top	557mm	—
Top Tube Slope	6.2deg	5.5deg -0.7deg
Head Tube Angle	72.8deg	72.7deg -0.1deg
Seat Tube Angle	73.4deg	73.5deg +0.1deg
Head Tube Length	148mm	138mm -10mm
Bottom Bracket Drop	72mm	79mm +7mm
Bottom Bracket Height	267mm	262mm -5mm
Chainstay Length	408mm	410mm +2mm
Chainstay Length Horizontal	401.6mm	402.3mm +0.7mm
Front-Center	590.6mm	593mm +2.4mm
Front-Center Horizontal	586.1mm	587.7mm +1.6mm
Wheelbase	987.7mm	990mm +2.3mm
Fork Offset/Rake	43mm	45mm +2mm
Fork Length (Axle-To-Crown)	—	376mm
Fork Length, Unknown	373mm	—
Trail	59.9mm mid/neutral	59.1mm -0.8mm mid/neutral
Mechanical Trail	57.3mm	56.4mm -0.9mm
Wheel Flop	16.9mm	16.8mm -0.1mm
Tire to Pedal Spindle	81.6mm 170 mm cranks	82mm +0.4mm 170 mm cranks
Pedal Spindle to Ground Clearance	97mm 170 mm cranks	92mm -5mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	28mm	30mm +2mm
Tire Width Max	30mm	34mm +4mm
Tire Outer Diameter	678mm	682mm +4mm
Bike Length with Tires	1665.7mm	1672mm +6.3mm
Crank Length	—	170mm
Handlebar Width	—	380mm
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