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

Insights

Somewhat 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	544mm	548mm +4mm
Reach	375mm	374mm -1mm
Stack to Reach Ratio	1.45:1	1.47:1
Seat Tube Length, C-T	460mm	—
Seat Tube Length, Unknown	—	495mm
Top Tube Length, Effective/Horizontal Center	536mm	—
Top Tube Length, Effective/Horizontal Unknown	—	526mm
Top Tube Slope	11.5deg	8deg -3.5deg
Head Tube Angle	70.7deg	71.5deg +0.8deg
Seat Tube Angle	73.5deg	74.5deg +1deg
Head Tube Length	113mm	121mm +8mm
Bottom Bracket Drop	78mm	75mm -3mm
Bottom Bracket Height	283mm	276mm -7mm
Chainstay Length	423mm	420mm -3mm
Chainstay Length Horizontal	415.8mm	413.3mm -2.5mm
Front-Center	600.3mm	586.6mm -13.7mm
Front-Center Horizontal	595.3mm	581.8mm -13.5mm
Wheelbase	1011mm	995mm -16mm
Fork Offset/Rake	54mm	47mm -7mm
Fork Length (Axle-To-Crown)	398mm	—
Trail	69.2mm high	67.9mm -1.3mm high
Mechanical Trail	65.3mm	64.4mm -0.9mm
Wheel Flop	21.6mm	20.4mm -1.2mm
Standover Height	768mm	767mm -1mm
Tire to Pedal Spindle	69.3mm 170 mm cranks	65.6mm -3.7mm 170 mm cranks
Pedal Spindle to Ground Clearance	113mm 170 mm cranks	106mm -7mm 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	1733mm	1697mm -36mm
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