Compare: 2026 OPEN Cycle U.P. 2.0 XS vs 2023 Seaboard GR02 Base 44

Insights

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

Design deviates from other sizes of OPEN Cycle U.P.

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

Design deviates from other sizes of Seaboard GR02

Stack	520mm	536.8mm +16.8mm
Reach	356mm	362mm +6mm
Stack to Reach Ratio	1.46:1	1.48:1
Seat Tube Length, C-T	418mm	—
Seat Tube Length, Unknown	—	440mm
Top Tube Length, Effective/Horizontal HT Top	506mm	—
Top Tube Length, Effective/Horizontal Unknown	—	511mm
Top Tube Slope	14.1deg	13.2deg -0.9deg
Head Tube Angle	70deg	71deg +1deg
Seat Tube Angle	73.5deg	74.5deg +1deg
Head Tube Length	—	115mm
Bottom Bracket Drop	82mm	70mm -12mm
Bottom Bracket Height	274mm	278mm +4mm
Chainstay Length	425mm	425mm +0mm
Chainstay Length Horizontal	417mm	419.2mm +2.2mm
Front-Center	589mm	579.9mm -9.1mm
Front-Center Horizontal	583mm	575.6mm -7.4mm
Wheelbase	1000mm	994.8mm -5.2mm
Fork Offset/Rake	50mm	50mm +0mm
Trail	76.4mm high	67mm -9.4mm high
Mechanical Trail	71.8mm	63.3mm -8.5mm
Wheel Flop	24.5mm	20.6mm -3.9mm
Standover Height	713mm	—
Tire to Pedal Spindle	63mm 170 mm cranks	61.9mm -1.1mm 170 mm cranks
Pedal Spindle to Ground Clearance	104mm 170 mm cranks	108mm +4mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	45mm	37mm -8mm
Tire Outer Diameter	712mm	696mm -16mm
Bike Length with Tires	1712mm	1690.8mm -21.2mm
Suspension Type	Rigid, non-suspension corrected	Rigid, non-suspension corrected
Bar Type	Drop Bar	Drop Bar
Frame Material	Carbon/Composite	Aluminum
Fork Material	Carbon/Composite	Carbon/Composite
Brake Type	Disc	Disc

Actions	Collection I've Ridden	Collection I've Ridden
Source	https://opencycle.com/upper-20	https://tsunamibicycle.com/product/seaboard-gr02-2022-gravel-bike-off-road-bike-touring-bike/
Brand	OPEN Cycle	Seaboard
Bike	2026 U.P. 2.0	2023 GR02 Base
Size	XS	44
Category	All-road/Gravel	All-road/Gravel