2025 Orbea Urrun Base

	S	M	L	XL
Stack	625mm	630mm	639mm	657mm
Reach	410mm	430mm	455mm	475mm
Stack to Reach Ratio	1.52:1	1.47:1	1.4:1	1.38:1
Seat Tube Length, C-T	400mm	420mm	450mm	500mm
Top Tube Length, Effective/Horizontal Center	575mm	506mm	624mm	649mm
Top Tube Slope	24.9deg	22.6deg	19.7deg	16.1deg
Head Tube Angle	66deg	66deg	66deg	66deg
Seat Tube Angle	74.5deg	74.5deg	74.5deg	74.5deg
Head Tube Length	100mm	105mm	115mm	135mm
Bottom Bracket Drop	63mm	63mm	63mm	63mm
Bottom Bracket Height	309.5mm	309.5mm	309.5mm	309.5mm
Chainstay Length	445mm	445mm	445mm	445mm
Chainstay Length Horizontal	440.5mm	440.5mm	440.5mm	440.5mm
Front-Center	711.3mm	733.2mm	762.1mm	790mm
Front-Center Horizontal	708.5mm	730.5mm	759.5mm	787.5mm
Wheelbase	1149mm	1171mm	1200mm	1228mm
Fork Offset/Rake	44mm	44mm	44mm	44mm
Fork Length (Axle-To-Crown)	534mm	534mm	534mm	534mm
Trail	117.7mm very high	117.7mm very high	117.7mm very high	117.7mm very high
Mechanical Trail	107.5mm	107.5mm	107.5mm	107.5mm
Wheel Flop	43.7mm	43.7mm	43.7mm	43.7mm
Standover Height	775mm	780mm	791mm	814mm
Tire to Pedal Spindle	168.8mm 170 mm cranks	190.7mm 170 mm cranks	219.6mm 170 mm cranks	247.5mm 170 mm cranks
Pedal Spindle to Ground Clearance	139.5mm 170 mm cranks	139.5mm 170 mm cranks	139.5mm 170 mm cranks	139.5mm 170 mm cranks

Published Sizing Recommendations

Height

155 cm

170 cm

165 cm

180 cm

175 cm

190 cm

185 cm

200 cm

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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Source:https://orbea.dash.app/browse/67e2043d-b134-4504-aa27-e009492c99c1?portal=orbea-manuals