2021 9:ZERO:7 Bikes Sterna 700C

	S	M	L	XL
Stack	522mm	551mm	580mm	609mm
Reach	365mm	376mm	387mm	398mm
Stack to Reach Ratio	1.43:1	1.47:1	1.5:1	1.53:1
Seat Tube Length, C-T	500mm	530mm	560mm	590mm
Top Tube Length, Effective/Horizontal HT Top	528mm	549mm	570mm	591mm
Top Tube Slope	5deg	4.9deg	4.7deg	4.6deg
Head Tube Angle	69.5deg	71deg	72.5deg	72.5deg
Seat Tube Angle	72.5deg	72.5deg	72.5deg	72.5deg
Head Tube Length	105mm	130mm	155mm	180mm
Bottom Bracket Drop	70mm	70mm	70mm	70mm
Bottom Bracket Height	281mm	281mm	281mm	281mm
Chainstay Length	420mm	420mm	420mm	420mm
Chainstay Length Horizontal	414.1mm	414.1mm	414.1mm	414.1mm
Front-Center	591.5mm	598.6mm	604.3mm	624.3mm
Front-Center Horizontal	587.4mm	594.5mm	600.2mm	620.4mm
Wheelbase	1001.5mm	1008.6mm	1014.4mm	1034.5mm
Fork Offset/Rake	50mm	50mm	50mm	50mm
Trail	77.9mm high	68mm high	58.2mm mid/neutral	58.2mm mid/neutral
Mechanical Trail	72.9mm	64.3mm	55.6mm	55.6mm
Wheel Flop	25.5mm	20.9mm	16.7mm	16.7mm
Tire to Pedal Spindle	70.5mm 170 mm cranks	77.6mm 170 mm cranks	83.3mm 170 mm cranks	103.3mm 170 mm cranks
Pedal Spindle to Ground Clearance	111mm 170 mm cranks	111mm 170 mm cranks	111mm 170 mm cranks	111mm 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.

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Source:https://www.907bikes.com/sterna

Geometry