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

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	531mm	519mm -12mm
Reach	367mm	366mm -1mm
Stack to Reach Ratio	1.45:1	1.42:1
Seat Tube Length, C-T	440mm	—
Seat Tube Length, Unknown	—	435mm
Top Tube Length, Effective/Horizontal Center	524mm	—
Top Tube Length, Effective/Horizontal Unknown	—	505mm
Top Tube Slope	12.5deg	11.7deg -0.8deg
Head Tube Angle	70.5deg	71deg +0.5deg
Seat Tube Angle	73.5deg	75deg +1.5deg
Head Tube Length	100mm	90mm -10mm
Bottom Bracket Drop	78mm	77mm -1mm
Bottom Bracket Height	283mm	274mm -9mm
Chainstay Length	423mm	420mm -3mm
Chainstay Length Horizontal	415.8mm	412.9mm -2.9mm
Front-Center	589.4mm	573.3mm -16.1mm
Front-Center Horizontal	584.3mm	568.1mm -16.2mm
Wheelbase	1000mm	981mm -19mm
Fork Offset/Rake	54mm	47mm -7mm
Fork Length (Axle-To-Crown)	398mm	—
Trail	70.6mm high	71.2mm +0.6mm high
Mechanical Trail	66.5mm	67.3mm +0.8mm
Wheel Flop	22.2mm	21.9mm -0.3mm
Standover Height	751mm	722mm -29mm
Tire to Pedal Spindle	58.4mm 170 mm cranks	52.3mm -6.1mm 170 mm cranks
Pedal Spindle to Ground Clearance	113mm 170 mm cranks	104mm -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	1722mm	1683mm -39mm
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