Compare: 2024 Serk Titanium A30M Frameset XS vs 2025 Winspace Cycle Co C5 Aero Base XS

Insights

Somewhat aggressive stack and reach vs trend of all-road/gravel bikes

Design deviates from other sizes of Serk Titanium A30M

Average stack and reach vs trend of endurance road bikes

Design deviates from other sizes of Winspace Cycle Co C5 Aero

Stack	506mm	512mm +6mm
Reach	366mm	365mm -1mm
Stack to Reach Ratio	1.38:1	1.4:1
Seat Tube Length, C-T	470mm	—
Seat Tube Length, Unknown	—	435mm
Top Tube Length, Effective/Horizontal HT Top	506mm	—
Top Tube Length, Actual C-C	—	499mm
Top Tube Slope	6.2deg	10.9deg +4.7deg
Head Tube Angle	70.5deg	70.6deg +0.1deg
Seat Tube Angle	74.5deg	75.35deg +0.85deg
Head Tube Length	93mm	110mm +17mm
Bottom Bracket Drop	73mm	72mm -1mm
Bottom Bracket Height	266mm	271mm +5mm
Chainstay Length	420mm	412mm -8mm
Chainstay Length Horizontal	413.6mm	405.7mm -7.9mm
Front-Center	577mm	571.9mm -5.1mm
Front-Center Horizontal	572.4mm	567.3mm -5.1mm
Wheelbase	986mm	973mm -13mm
Fork Offset/Rake	50mm	45mm -5mm
Fork Length (On-Axis)	—	371mm
Trail	67mm high	73.1mm +6.1mm high
Mechanical Trail	63.2mm	68.9mm +5.7mm
Wheel Flop	21.1mm	22.9mm +1.8mm
Standover Height	—	728mm
Tire to Pedal Spindle	68mm 170 mm cranks	58.9mm -9.1mm 170 mm cranks
Pedal Spindle to Ground Clearance	96mm 170 mm cranks	101mm +5mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	28mm	32mm +4mm
Tire Outer Diameter	678mm	686mm +8mm
Bike Length with Tires	1664mm	1659mm -5mm
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/a30m/	https://www.winspace.cc/product/c5-aero/?v=0b3b97fa6688
Brand	Serk Titanium	Winspace Cycle Co
Bike	2024 A30M Frameset	2025 C5 Aero Base
Size	XS	XS
Category	All-road/Gravel	Endurance Road