Compare: 2024 SEKA Spear Base XS vs 2025 Winspace Cycle Co C5 Aero Base XS

Insights

Somewhat upright stack and reach vs trend of performance road bikes

Design deviates from other sizes of SEKA Spear

Average stack and reach vs trend of endurance road bikes

Design deviates from other sizes of Winspace Cycle Co C5 Aero

Stack	508mm	512mm +4mm
Reach	362mm	365mm +3mm
Stack to Reach Ratio	1.4:1	1.4:1
Seat Tube Length, C-T	449mm	—
Seat Tube Length, Unknown	—	435mm
Top Tube Length, Effective/Horizontal Center	484mm	—
Top Tube Length, Actual C-C	—	499mm
Top Tube Slope	8.8deg	10.9deg +2.1deg
Head Tube Angle	70.6deg	70.6deg +0deg
Seat Tube Angle	75deg	75.35deg +0.35deg
Head Tube Length	107mm	110mm +3mm
Bottom Bracket Drop	74mm	72mm -2mm
Bottom Bracket Height	265mm	271mm +6mm
Chainstay Length	410mm	412mm +2mm
Chainstay Length Horizontal	403.3mm	405.7mm +2.4mm
Front-Center	570.6mm	571.9mm +1.3mm
Front-Center Horizontal	565.7mm	567.3mm +1.6mm
Wheelbase	969mm	973mm +4mm
Fork Offset/Rake	48mm	45mm -3mm
Fork Length (On-Axis)	—	371mm
Fork Length (Axle-To-Crown)	372mm	—
Trail	68.5mm high	73.1mm +4.6mm high
Mechanical Trail	64.6mm	68.9mm +4.3mm
Wheel Flop	21.5mm	22.9mm +1.4mm
Standover Height	—	728mm
Tire to Pedal Spindle	61.6mm 170 mm cranks	58.9mm -2.7mm 170 mm cranks
Pedal Spindle to Ground Clearance	95mm 170 mm cranks	101mm +6mm 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	1647mm	1659mm +12mm
Suspension Type	Rigid, non-suspension corrected	Rigid, non-suspension corrected
Bar Type	Drop Bar	Drop Bar
Frame Material	Carbon/Composite	Carbon/Composite
Fork Material	Carbon/Composite	Carbon/Composite
Brake Type	Rim	Disc

Actions	Collection I've Ridden	Collection I've Ridden
Source	https://mp.weixin.qq.com/s/1tTF6ryX5Hz-rCWaa0TTHw	https://www.winspace.cc/product/c5-aero/?v=0b3b97fa6688
Brand	SEKA	Winspace Cycle Co
Bike	2024 Spear Base	2025 C5 Aero Base
Size	XS	XS
Category	Performance Road	Endurance Road