2026 Giant Bicycles Defy Advanced 0

	S	M	ML	L	XL
Stack	541mm	558mm	577mm	596mm	615mm
Reach	375mm	380mm	384mm	393mm	402mm
Stack to Reach Ratio	1.44:1	1.47:1	1.5:1	1.52:1	1.53:1
Seat Tube Length, C-T	445mm	480mm	515mm	535mm	565mm
Top Tube Length, Actual C-C	530mm	545mm	560mm	575mm	595mm
Top Tube Slope	12.8deg	10.7deg	9deg	8.7deg	7.5deg
Head Tube Angle	71.8deg	72.5deg	72.5deg	72.5deg	72.5deg
Seat Tube Angle	74deg	73.5deg	73deg	73deg	73deg
Head Tube Length	135mm	150mm	175mm	195mm	215mm
Bottom Bracket Drop	75mm	75mm	70mm	70mm	70mm
Bottom Bracket Height	269.5mm	269.5mm	274.5mm	274.5mm	274.5mm
Chainstay Length	420mm	420mm	420mm	420mm	420mm
Chainstay Length Horizontal	413.3mm	413.3mm	414.1mm	414.1mm	414.1mm
Front-Center	585.6mm	589.5mm	600mm	614.9mm	629.8mm
Front-Center Horizontal	580.8mm	584.8mm	595.9mm	610.9mm	625.9mm
Wheelbase	994mm	998mm	1010mm	1025mm	1040mm
Fork Offset/Rake	50mm	50mm	50mm	50mm	50mm
Trail	60.6mm mid/neutral	56.2mm mid/neutral	56.2mm mid/neutral	56.2mm mid/neutral	56.2mm mid/neutral
Mechanical Trail	57.6mm	53.6mm	53.6mm	53.6mm	53.6mm
Wheel Flop	18mm	16.1mm	16.1mm	16.1mm	16.1mm
Standover Height	733mm	762mm	796mm	814mm	841mm
Tire to Pedal Spindle	76.1mm 165 mm cranks	75mm 170 mm cranks	85.5mm 170 mm cranks	97.9mm 172.5 mm cranks	112.8mm 172.5 mm cranks
Pedal Spindle to Ground Clearance	104.5mm 165 mm cranks	99.5mm 170 mm cranks	104.5mm 170 mm cranks	102mm 172.5 mm cranks	102mm 172.5 mm cranks

Published Sizing Recommendations

Height

166 cm

174 cm

172 cm

180 cm

178 cm

186 cm

184 cm

192 cm

190 cm

198 cm

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.giant-bicycles.com/us/defy-advanced-0-2026