2023 Marino Four Corners Base

	XS	S	M	L	XL
Stack	560mm	580mm	617mm	646.3mm	677.6mm
Reach	376.7mm	381mm	403.3mm	412.6mm	426.6mm
Stack to Reach Ratio	1.49:1	1.52:1	1.53:1	1.57:1	1.59:1
Seat Tube Length, C-T	381mm	422mm	462mm	495mm	528mm
Top Tube Length, Effective/Horizontal HT Top	532mm	552.8mm	586.1mm	616.4mm	646.8mm
Top Tube Slope	22deg	19.3deg	18deg	17.2deg	16.6deg
Head Tube Angle	70.5deg	70.5deg	71.5deg	71.5deg	71.5deg
Seat Tube Angle	74.5deg	73.5deg	73.5deg	72.5deg	72deg
Head Tube Length	177mm	198mm	198mm	229mm	262mm
Bottom Bracket Drop	53.5mm	53.5mm	72mm	72mm	72mm
Bottom Bracket Height	280.5mm	280.5mm	281mm	281mm	281mm
Chainstay Length	432mm	432mm	450mm	450mm	450mm
Chainstay Length Horizontal	428.7mm	428.7mm	444.2mm	444.2mm	444.2mm
Front-Center	604.1mm	615.5mm	640.9mm	659.7mm	684.7mm
Front-Center Horizontal	601.7mm	613.1mm	636.8mm	655.8mm	680.9mm
Wheelbase	1030.4mm	1041.8mm	1081mm	1100mm	1125.1mm
Fork Offset/Rake	43mm	43mm	49mm	49mm	49mm
Trail	72.7mm high	72.7mm high	66.4mm high	66.4mm high	66.4mm high
Mechanical Trail	68.5mm	68.5mm	63mm	63mm	63mm
Wheel Flop	22.9mm	22.9mm	20mm	20mm	20mm
Standover Height	666.6mm	706.4mm	744.5mm	777.3mm	809.8mm
Tire to Pedal Spindle	100.1mm 170 mm cranks	111.5mm 170 mm cranks	112.9mm 175 mm cranks	131.7mm 175 mm cranks	156.7mm 175 mm cranks
Pedal Spindle to Ground Clearance	110.5mm 170 mm cranks	110.5mm 170 mm cranks	106mm 175 mm cranks	106mm 175 mm cranks	106mm 175 mm cranks

Very Upright

Somewhat Upright

Average

Somewhat Aggressive

Very Aggressive

The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.

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Source:https://www.marinbikes.com/bikes/2023-four-corners-2#specifications

Geometry