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

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	575mm	586mm +11mm
Reach	390mm	381mm -9mm
Stack to Reach Ratio	1.47:1	1.54:1
Seat Tube Length, C-T	530mm	515mm -15mm
Top Tube Length, Effective/Horizontal HT Top	567mm	560mm -7mm
Top Tube Slope	7.1deg	10deg +2.9deg
Head Tube Angle	73deg	72.5deg -0.5deg
Seat Tube Angle	73deg	73deg +0deg
Head Tube Length	156mm	185mm +29mm
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	592.9mm	600mm +7.1mm
Front-Center Horizontal	588.4mm	595.9mm +7.5mm
Wheelbase	1000mm	1010mm +10mm
Fork Offset/Rake	43mm	50mm +7mm
Trail	59.3mm mid/neutral	55.7mm -3.6mm mid/neutral
Mechanical Trail	56.7mm	53.1mm -3.6mm
Wheel Flop	16.6mm	16mm -0.6mm
Standover Height	—	816mm
Tire to Pedal Spindle	81.9mm 170 mm cranks	84.5mm +2.6mm 172.5 mm cranks
Pedal Spindle to Ground Clearance	98mm 170 mm cranks	100.5mm +2.5mm 172.5 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	1682mm	1696mm +14mm
Crank Length	—	172.5mm
Handlebar Width	—	420mm
Stem Length	—	100mm
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	L	ML
Category	Endurance Road	Endurance Road