2026 Marin Bikes Muirwoods Base

	XS	S	M	L	XL
Stack	561.7mm	580.2mm	598.6mm	617.1mm	635.6mm
Reach	375mm	400mm	425mm	450mm	475mm
Stack to Reach Ratio	1.5:1	1.45:1	1.41:1	1.37:1	1.34:1
Seat Tube Length, C-T	380mm	420mm	460mm	500mm	530mm
Top Tube Length, Effective/Horizontal Center	536mm	566.4mm	596.7mm	627mm	657.3mm
Top Tube Slope	22.3deg	18.9deg	15.8deg	13.1deg	11.5deg
Head Tube Angle	67.5deg	67.5deg	67.5deg	67.5deg	67.5deg
Seat Tube Angle	74deg	74deg	74deg	74deg	74deg
Head Tube Length	130mm	150mm	170mm	190mm	210mm
Bottom Bracket Drop	75mm	75mm	75mm	75mm	75mm
Bottom Bracket Height	276.7mm	276.7mm	276.7mm	276.7mm	276.7mm
Chainstay Length	430mm	430mm	430mm	430mm	430mm
Chainstay Length Horizontal	423.4mm	423.4mm	423.4mm	423.4mm	423.4mm
Front-Center	636.2mm	668.7mm	701.1mm	733.6mm	766.1mm
Front-Center Horizontal	631.8mm	664.4mm	697.1mm	729.8mm	762.4mm
Wheelbase	1055.2mm	1087.9mm	1120.5mm	1153.2mm	1185.8mm
Fork Offset/Rake	45mm	45mm	45mm	45mm	45mm
Trail	97mm very high	97mm very high	97mm very high	97mm very high	97mm very high
Mechanical Trail	89.6mm	89.6mm	89.6mm	89.6mm	89.6mm
Wheel Flop	34.3mm	34.3mm	34.3mm	34.3mm	34.3mm
Standover Height	633mm	672mm	703mm	731mm	751mm
Tire to Pedal Spindle	114.5mm 170 mm cranks	147mm 170 mm cranks	174.4mm 175 mm cranks	206.9mm 175 mm cranks	239.4mm 175 mm cranks
Pedal Spindle to Ground Clearance	106.7mm 170 mm cranks	106.7mm 170 mm cranks	101.7mm 175 mm cranks	101.7mm 175 mm cranks	101.7mm 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.

Category Trend

Source:https://www.marinbikes.com/bikes/2025-muirwoods-2

Geometry