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

Insights

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

Design deviates from other sizes of Seaboard GR02

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

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

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

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

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