2021 Giant Bicycles Defy Advanced

	S	M	ML	L	XL
Stack	546mm	567mm	586mm	605mm	625mm
Reach	374mm	377mm	381mm	390mm	398mm
Stack to Reach Ratio	1.46:1	1.5:1	1.54:1	1.55:1	1.57:1
Seat Tube Length, Unknown	445mm	480mm	515mm	535mm	565mm
Top Tube Length, Effective/Horizontal Unknown	530mm	545mm	560mm	575mm	595mm
Top Tube Slope	13.4deg	11.8deg	10deg	9.7deg	8.6deg
Head Tube Angle	72.5deg	72.5deg	72.5deg	72.5deg	72.5deg
Seat Tube Angle	74deg	73.5deg	73deg	73deg	72.5deg
Head Tube Length	140mm	160mm	185mm	205mm	225mm
Bottom Bracket Drop	75mm	75mm	70mm	70mm	70mm
Bottom Bracket Height	268mm	268mm	273mm	273mm	273mm
Chainstay Length	420mm	420mm	420mm	420mm	420mm
Chainstay Length Horizontal	413.3mm	413.3mm	414.1mm	414.1mm	414.1mm
Front-Center	586.6mm	589.5mm	600mm	614.9mm	629.8mm
Front-Center Horizontal	581.8mm	584.8mm	595.9mm	610.9mm	625.9mm
Wheelbase	995mm	998mm	1010mm	1025mm	1040mm
Fork Offset/Rake	50mm	50mm	50mm	50mm	50mm
Trail	55.7mm mid/neutral	55.7mm mid/neutral	55.7mm mid/neutral	55.7mm mid/neutral	55.7mm mid/neutral
Mechanical Trail	53.1mm	53.1mm	53.1mm	53.1mm	53.1mm
Wheel Flop	16mm	16mm	16mm	16mm	16mm
Standover Height	760mm	786mm	816mm	835mm	856mm
Tire to Pedal Spindle	73.6mm 170 mm cranks	74mm 172.5 mm cranks	84.5mm 172.5 mm cranks	96.9mm 175 mm cranks	111.8mm 175 mm cranks
Pedal Spindle to Ground Clearance	98mm 170 mm cranks	95.5mm 172.5 mm cranks	100.5mm 172.5 mm cranks	98mm 175 mm cranks	98mm 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://pdf.giant-bicycles.com/giant/gb/bikes/generate-pdf/global/1990?filename=giant-bicycles-bike-1990.pdf

Geometry