Compare: 2026 Winspace Cycle Co G5 Base XXL vs 2025 Serk Titanium A40 Base XL

Insights

Very upright stack and reach vs trend of progressive gravel bikes

Design deviates from other sizes of Winspace Cycle Co G5

Bar type unusual for category

This: Aero Bar
Category: Drop Bar

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

Design deviates from other sizes of Serk Titanium A40

Stack	619mm	613mm -6mm
Reach	407mm	398mm -9mm
Stack to Reach Ratio	1.52:1	1.54:1
Seat Tube Length, C-T	570mm	—
Seat Tube Length, Unknown	—	560mm
Top Tube Length, Effective/Horizontal Center	590mm	—
Top Tube Length, Effective/Horizontal Unknown	—	580mm
Top Tube Slope	7.3deg	7.8deg +0.5deg
Head Tube Angle	71.5deg	71.5deg +0deg
Seat Tube Angle	73.5deg	73.5deg +0deg
Head Tube Length	193mm	192mm -1mm
Bottom Bracket Drop	74mm	73mm -1mm
Bottom Bracket Height	287mm	278mm -9mm
Chainstay Length	427mm	420mm -7mm
Chainstay Length Horizontal	420.5mm	413.6mm -6.9mm
Front-Center	647.7mm	632.6mm -15.1mm
Front-Center Horizontal	643.5mm	628.4mm -15.1mm
Wheelbase	1064mm	1042mm -22mm
Fork Offset/Rake	51mm	47mm -4mm
Fork Length (Axle-To-Crown)	398mm	—
Trail	67mm high	67.9mm +0.9mm high
Mechanical Trail	63.6mm	64.4mm +0.8mm
Wheel Flop	20.2mm	20.4mm +0.2mm
Standover Height	865mm	831mm -34mm
Tire to Pedal Spindle	116.7mm 170 mm cranks	111.6mm -5.1mm 170 mm cranks
Pedal Spindle to Ground Clearance	117mm 170 mm cranks	108mm -9mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	50mm	40mm -10mm
Tire Width Max	58mm	—
Tire Outer Diameter	722mm	702mm -20mm
Bike Length with Tires	1786mm	1744mm -42mm
Suspension Type	Rigid, non-suspension corrected	Rigid, non-suspension corrected
Bar Type	Aero Bar	Drop Bar
Frame Material	Carbon/Composite	Titanium
Fork Material	Carbon/Composite	Carbon/Composite
Brake Type	Disc	Unknown