Compare: 2023 Giant Bicycles Defy Advanced 2 XL vs 2022 Serk Titanium A30 Base XL

Insights

Average stack and reach vs trend of endurance road bikes

Design deviates from other sizes of Giant Bicycles Defy

Somewhat aggressive stack and reach vs trend of endurance road bikes

Design deviates from other sizes of Serk Titanium A30

Stack	624mm	598mm -26mm
Reach	398mm	398mm +0mm
Stack to Reach Ratio	1.57:1	1.5:1
Seat Tube Length, C-T	565mm	550mm -15mm
Top Tube Length, Effective/Horizontal HT Top	595mm	587mm -8mm
Top Tube Slope	8.5deg	7.4deg -1.1deg
Head Tube Angle	72.5deg	73.5deg +1deg
Seat Tube Angle	72.5deg	72.5deg +0deg
Head Tube Length	225mm	178mm -47mm
Bottom Bracket Drop	70mm	73mm +3mm
Bottom Bracket Height	273mm	268mm -5mm
Chainstay Length	420mm	418mm -2mm
Chainstay Length Horizontal	414.1mm	411.6mm -2.5mm
Front-Center	629.8mm	602.9mm -26.9mm
Front-Center Horizontal	625.9mm	598.4mm -27.5mm
Wheelbase	1040mm	1010mm -30mm
Fork Offset/Rake	50mm	43mm -7mm
Trail	55.7mm mid/neutral	56.2mm +0.5mm mid/neutral
Mechanical Trail	53.1mm	53.9mm +0.8mm
Wheel Flop	16mm	15.3mm -0.7mm
Standover Height	856mm	—
Tire to Pedal Spindle	111.8mm 175 mm cranks	91.9mm -19.9mm 170 mm cranks
Pedal Spindle to Ground Clearance	98mm 175 mm cranks	98mm +0mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	32mm	30mm -2mm
Tire Outer Diameter	686mm	682mm -4mm
Bike Length with Tires	1726mm	1692mm -34mm
Crank Length	175mm	—
Handlebar Width	440mm	—
Stem Length	110mm	—
Suspension Type	Rigid, non-suspension corrected	Rigid, non-suspension corrected
Bar Type	Drop Bar	Drop Bar
Frame Material	Carbon/Composite	Titanium
Fork Material	Carbon/Composite	Carbon/Composite
Brake Type	Disc	Disc

Actions	Collection I've Ridden	Collection I've Ridden
Source	https://www.giant-bicycles.com/fr/defy-advanced-pro-2-axs-2023	https://www.serk.cc/a30-2/
Brand	Giant Bicycles	Serk Titanium
Bike	2023 Defy Advanced 2	2022 A30 Base
Size	XL	XL
Category	Endurance Road	Endurance Road