2021 Marin Bikes Alpine Trail 7

	S	M	L
Stack	619mm	628mm	632mm
Reach	430mm	455mm	480mm
Stack to Reach Ratio	1.44:1	1.38:1	1.32:1
Seat Tube Length, C-T	390mm	400mm	425mm
Top Tube Length, Effective/Horizontal Center	561.7mm	589mm	615mm
Top Tube Slope	24.9deg	23.7deg	20.8deg
Head Tube Angle	63.5deg	63.5deg	63.5deg
Seat Tube Angle	78deg	78deg	78deg
Head Tube Length	100mm	110mm	115mm
Bottom Bracket Drop	35mm	35mm	35mm
Bottom Bracket Height	342mm	342mm	342mm
Chainstay Length	430mm	430mm	430mm
Chainstay Length Horizontal	428.6mm	428.6mm	428.6mm
Front-Center	771.2mm	801.2mm	828.2mm
Front-Center Horizontal	770.4mm	800.4mm	827.4mm
Wheelbase	1199mm	1229mm	1256mm
Fork Offset/Rake	44mm	44mm	44mm
Trail	138.8mm very high	138.8mm very high	138.8mm very high
Mechanical Trail	124.2mm	124.2mm	124.2mm
Wheel Flop	55.4mm	55.4mm	55.4mm
Standover Height	714mm	716mm	732mm
Tire to Pedal Spindle	224.2mm 170 mm cranks	254.2mm 170 mm cranks	281.1mm 170 mm cranks
Pedal Spindle to Ground Clearance	172mm 170 mm cranks	172mm 170 mm cranks	172mm 170 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/2021-alpine-trail-7

Geometry