Compare: 2025 Factor Bikes OSTRO GRAVEL Carbon 54 vs 2025 Winspace Cycle Co C5 Aero Base L

Insights

Average stack and reach vs trend of progressive gravel bikes

Design deviates from other sizes of Factor Bikes OSTRO GRAVEL

Somewhat aggressive stack and reach vs trend of endurance road bikes

Design deviates from other sizes of Winspace Cycle Co C5 Aero

Stack	555mm	557mm +2mm
Reach	394mm	387mm -7mm
Stack to Reach Ratio	1.41:1	1.44:1
Seat Tube Length, C-T	483mm	—
Seat Tube Length, Unknown	—	515mm
Top Tube Length, Actual C-C	—	552mm
Top Tube Slope	9.8deg	6.8deg -3deg
Head Tube Angle	72.2deg	72.3deg +0.1deg
Seat Tube Angle	74deg	73.5deg -0.5deg
Head Tube Length	—	150mm
Bottom Bracket Drop	74mm	72mm -2mm
Bottom Bracket Height	277mm	271mm -6mm
Chainstay Length	420mm	412mm -8mm
Chainstay Length Horizontal	413.4mm	405.7mm -7.7mm
Front-Center	605.1mm	587.8mm -17.3mm
Front-Center Horizontal	600.6mm	583.3mm -17.3mm
Wheelbase	1014mm	989mm -25mm
Fork Offset/Rake	50mm	40mm -10mm
Fork Length (On-Axis)	—	371mm
Trail	60.2mm mid/neutral	67.5mm +7.3mm high
Mechanical Trail	57.3mm	64.3mm +7mm
Wheel Flop	17.5mm	19.5mm +2mm
Standover Height	786mm	790mm +4mm
Tire to Pedal Spindle	84.1mm 170 mm cranks	74.8mm -9.3mm 170 mm cranks
Pedal Spindle to Ground Clearance	107mm 170 mm cranks	101mm -6mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	40mm	32mm -8mm
Tire Outer Diameter	702mm	686mm -16mm
Bike Length with Tires	1716mm	1675mm -41mm
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	Disc	Disc

Actions	Collection I've Ridden	Collection I've Ridden
Source	https://factorbikes.com/bikes/ostro-gravel	https://www.winspace.cc/product/c5-aero/?v=0b3b97fa6688
Brand	Factor Bikes	Winspace Cycle Co
Bike	2025 OSTRO GRAVEL Carbon	2025 C5 Aero Base
Size	54	L
Category	Progressive Gravel	Endurance Road