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

Insights

Somewhat aggressive stack and reach vs trend of endurance road bikes

Design deviates from other sizes of Serk Titanium A30

Average stack and reach vs trend of endurance road bikes

Design deviates from other sizes of Giant Bicycles Defy

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

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	30mm	32mm +2mm
Tire Outer Diameter	682mm	686mm +4mm
Bike Length with Tires	1692mm	1726mm +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	Titanium	Carbon/Composite
Fork Material	Carbon/Composite	Carbon/Composite
Brake Type	Disc	Disc

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