Compare: 2025 Factor Bikes OSTRO GRAVEL Carbon 56 vs 2026 Winspace Cycle Co M6 Base XL

Insights

Somewhat upright stack and reach vs trend of progressive gravel bikes

Somewhat aggressive stack and reach vs trend of performance road bikes

Design deviates from other sizes of Winspace Cycle Co M6

Stack	580mm	564mm -16mm
Reach	402mm	400mm -2mm
Stack to Reach Ratio	1.44:1	1.41:1
Seat Tube Length, C-T	500mm	—
Seat Tube Length, Effective Unknown	—	530mm
Top Tube Length, Effective/Horizontal Unknown	—	571mm
Top Tube Slope	10.5deg	—
Head Tube Angle	72.3deg	72.3deg +0deg
Seat Tube Angle	73.5deg	73.1deg -0.4deg
Head Tube Length	—	160mm
Bottom Bracket Drop	74mm	72mm -2mm
Bottom Bracket Height	277mm	271mm -6mm
Chainstay Length	423mm	410mm -13mm
Chainstay Length Horizontal	416.5mm	403.6mm -12.9mm
Front-Center	617mm	606.7mm -10.3mm
Front-Center Horizontal	612.5mm	602.4mm -10.1mm
Wheelbase	1029mm	1006mm -23mm
Fork Offset/Rake	50mm	43mm -7mm
Fork Length, Unknown	—	369mm
Trail	59.5mm mid/neutral	64.3mm +4.8mm mid/neutral
Mechanical Trail	56.7mm	61.3mm +4.6mm
Wheel Flop	17.2mm	18.6mm +1.4mm
Standover Height	802mm	808mm +6mm
Tire to Pedal Spindle	96mm 170 mm cranks	93.7mm -2.3mm 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	1731mm	1692mm -39mm
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://cdn.shopify.com/s/files/1/0912/6101/0215/files/2_M6_catalog_-_260224_2__04.png?v=1772209825
Brand	Factor Bikes	Winspace Cycle Co
Bike	2025 OSTRO GRAVEL Carbon	2026 M6 Base
Size	56	XL
Category	Progressive Gravel	Performance Road