Compare: 2020 OPEN Cycle U.P.P.E.R. Base M vs 2026 Winspace Cycle Co M6 Base L

Insights

Average stack and reach vs trend of all-road/gravel bikes

Average stack and reach vs trend of performance road bikes

Stack	551mm	550mm -1mm
Reach	376mm	391mm +15mm
Stack to Reach Ratio	1.47:1	1.41:1
Seat Tube Length, C-T	540mm	—
Seat Tube Length, Effective Unknown	—	510mm
Top Tube Length, Effective/Horizontal HT Top	549mm	—
Top Tube Length, Effective/Horizontal Unknown	—	554mm
Top Tube Slope	3.8deg	—
Head Tube Angle	71deg	72.3deg +1.3deg
Seat Tube Angle	72.5deg	73.5deg +1deg
Head Tube Length	130mm	145mm +15mm
Bottom Bracket Drop	70mm	72mm +2mm
Bottom Bracket Height	275.3mm	271mm -4.3mm
Chainstay Length	420mm	410mm -10mm
Chainstay Length Horizontal	414.1mm	403.6mm -10.5mm
Front-Center	598mm	592.8mm -5.2mm
Front-Center Horizontal	593.9mm	588.4mm -5.5mm
Wheelbase	1008mm	992mm -16mm
Fork Offset/Rake	50mm	43mm -7mm
Fork Length, Unknown	—	369mm
Trail	66mm high	64.3mm -1.7mm mid/neutral
Mechanical Trail	62.4mm	61.3mm -1.1mm
Wheel Flop	20.3mm	18.6mm -1.7mm
Standover Height	767mm	791mm +24mm
Tire to Pedal Spindle	82.7mm 170 mm cranks	79.8mm -2.9mm 170 mm cranks
Pedal Spindle to Ground Clearance	105.3mm 170 mm cranks	101mm -4.3mm 170 mm cranks

Wheel Size	650B/27.5 in 584 mm BSD	700C/29 in 622 mm BSD
Tire Width	2.1in	32mm -21.3mm
Tire Outer Diameter	690.7mm	686mm -4.7mm
Bike Length with Tires	1698.7mm	1678mm -20.7mm
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://opencycle.com/UP	https://cdn.shopify.com/s/files/1/0912/6101/0215/files/2_M6_catalog_-_260224_2__04.png?v=1772209825
Brand	OPEN Cycle	Winspace Cycle Co
Bike	2020 U.P.P.E.R. Base	2026 M6 Base
Size	M	L
Category	All-road/Gravel	Performance Road