2025 Marin Bikes Four Corners 1

	XS	S	M	L	XL
Stack	560mm	580mm	618mm	648mm	679mm
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, Effective Unknown	381mm	422mm	462mm	495mm	528mm
Top Tube Length, Effective/Horizontal Unknown	532mm	553mm	586mm	617mm	647mm
Head Tube Angle	70deg	70deg	71deg	71deg	71deg
Seat Tube Angle	74.5deg	73.5deg	73.5deg	72.5deg	72deg
Head Tube Length	167mm	188mm	188mm	209mm	252mm
Bottom Bracket Drop	53.5mm	53.5mm	72mm	72mm	72mm
Bottom Bracket Height	283.5mm	283.5mm	284mm	284mm	284mm
Chainstay Length	432mm	432mm	450mm	450mm	450mm
Chainstay Length Horizontal	428.7mm	428.7mm	444.2mm	444.2mm	444.2mm
Front-Center	608.7mm	620.6mm	646.8mm	666.7mm	691.6mm
Front-Center Horizontal	606.3mm	618.3mm	642.8mm	662.8mm	687.8mm
Wheelbase	1035mm	1047mm	1087mm	1107mm	1132mm
Fork Offset/Rake	43mm	43mm	49mm	49mm	49mm
Trail	76.9mm high	76.9mm high	70.8mm high	70.8mm high	70.8mm high
Mechanical Trail	72.3mm	72.3mm	66.9mm	66.9mm	66.9mm
Wheel Flop	24.7mm	24.7mm	21.8mm	21.8mm	21.8mm
Standover Height	668mm	707mm	745mm	777mm	810mm
Tire to Pedal Spindle	101.7mm 170 mm cranks	113.6mm 170 mm cranks	115.8mm 175 mm cranks	135.7mm 175 mm cranks	160.6mm 175 mm cranks
Pedal Spindle to Ground Clearance	113.5mm 170 mm cranks	113.5mm 170 mm cranks	109mm 175 mm cranks	109mm 175 mm cranks	109mm 175 mm cranks

Published Sizing Recommendations

Height

4 ft 11 in

5 ft 3 in

5 ft 2 in

5 ft 6 in

5 ft 10 in

6 ft 1 in

6 ft 4 in

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/2025-four-corners-1