	S	M	L	XL
Stack	633mm	644mm	655mm	673mm
Reach	417mm	444.5mm	470.5mm	494mm
Stack to Reach Ratio	1.52:1	1.45:1	1.39:1	1.36:1
Seat Tube Length, C-T	428mm	442.7mm	457.3mm	472mm
Top Tube Length, Effective/Horizontal Center	583.5mm	612mm	641mm	669.5mm
Top Tube Slope	22.6deg	21.1deg	19.9deg	19.4deg
Head Tube Angle	66.5deg	67.2deg	67.2deg	67.2deg
Seat Tube Angle	74.7deg	74.7deg	74.7deg	74.7deg
Head Tube Length	129.5mm	138.6mm	150.6mm	170.2mm
Bottom Bracket Drop	65mm	65mm	65mm	65mm
Bottom Bracket Height	296mm	296mm	296mm	296mm
Chainstay Length	450mm	450mm	450mm	450mm
Chainstay Length Horizontal	445.3mm	445.3mm	445.3mm	445.3mm
Front-Center	719.7mm	748.6mm	779.4mm	810.3mm
Front-Center Horizontal	716.7mm	745.7mm	776.7mm	807.7mm
Wheelbase	1162mm	1191mm	1222mm	1253mm
Fork Offset/Rake	46mm	46mm	46mm	46mm
Fork Length, Unknown	508mm	508mm	508mm	508mm
Trail	106.8mm very high	101.9mm very high	101.9mm very high	101.9mm very high
Mechanical Trail	98mm	93.9mm	93.9mm	93.9mm
Wheel Flop	39.1mm	36.4mm	36.4mm	36.4mm
Tire to Pedal Spindle	188.7mm 170 mm cranks	217.6mm 170 mm cranks	248.4mm 170 mm cranks	279.3mm 170 mm cranks
Pedal Spindle to Ground Clearance	126mm 170 mm cranks	126mm 170 mm cranks	126mm 170 mm cranks	126mm 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.

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2026 Orbea Kemen Tour

Geometry