2025 Seaboard CX03 Base

	XS (44)	S (47)	M (50)	L (53)	XL (56)
Stack	546mm	558mm	570mm	589mm	602mm
Reach	369mm	372mm	376mm	380mm	409mm
Stack to Reach Ratio	1.48:1	1.5:1	1.52:1	1.55:1	1.47:1
Seat Tube Length, C-T	440mm	470mm	500mm	530mm	560mm
Top Tube Length, Effective/Horizontal Center	515mm	527mm	535mm	549mm	564mm
Top Tube Slope	14.1deg	11.9deg	9.8deg	8.6deg	6.2deg
Head Tube Angle	71.5deg	71.5deg	72deg	72deg	73.5deg
Seat Tube Angle	74.5deg	74.5deg	74.5deg	74deg	75.5deg
Head Tube Length	90mm	110mm	140mm	170mm	200mm
Bottom Bracket Drop	70mm	70mm	72mm	72mm	72mm
Bottom Bracket Height	281mm	281mm	279mm	279mm	279mm
Chainstay Length	425mm	425mm	425mm	425mm	425mm
Chainstay Length Horizontal	419.2mm	419.2mm	418.9mm	418.9mm	418.9mm
Front-Center	584mm	586mm	590.6mm	599.5mm	610.4mm
Front-Center Horizontal	579.8mm	581.8mm	586.1mm	595.1mm	606.1mm
Wheelbase	999mm	1001mm	1005mm	1014mm	1025mm
Fork Offset/Rake	48.9mm	44.1mm	46mm	44.9mm	38.5mm
Trail	65.9mm high	70.9mm high	65.7mm high	66.9mm high	63.8mm mid/neutral
Mechanical Trail	62.5mm	67.3mm	62.5mm	63.6mm	61.2mm
Wheel Flop	19.8mm	21.3mm	19.3mm	19.7mm	17.4mm
Tire to Pedal Spindle	63mm 170 mm cranks	65mm 170 mm cranks	69.6mm 170 mm cranks	78.5mm 170 mm cranks	89.4mm 170 mm cranks
Pedal Spindle to Ground Clearance	111mm 170 mm cranks	111mm 170 mm cranks	109mm 170 mm cranks	109mm 170 mm cranks	109mm 170 mm cranks

Very Upright

Somewhat Upright

Average

Somewhat Aggressive

Very Aggressive

The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.

Category Trend

Source:https://tsunamibicycle.com/product/thru-axle-steel-gravel-bike-frameset-cx03-700c-travel-bike-touring-bike-frameset/

Geometry