	S	M	L	XL
Stack	594mm	604mm	618mm	645mm
Reach	425mm	455mm	485mm	510mm
Stack to Reach Ratio	1.4:1	1.33:1	1.27:1	1.26:1
Seat Tube Length, Unknown	390mm	410mm	455mm	505mm
Top Tube Length, Effective/Horizontal Center	568mm	601mm	634mm	666mm
Top Tube Slope	22.5deg	20.4deg	16.5deg	13.8deg
Head Tube Angle	66.3deg	66.3deg	66.3deg	66.3deg
Seat Tube Angle	76deg	76deg	76deg	76deg
Head Tube Length	92mm	105mm	120mm	150mm
Bottom Bracket Drop	37mm	35mm	35mm	35mm
Bottom Bracket Height	333.7mm	335.7mm	335.7mm	335.7mm
Chainstay Length	435mm	435mm	438mm	442mm
Chainstay Length Horizontal	433.4mm	433.6mm	436.6mm	440.6mm
Front-Center	716mm	752mm	788mm	823mm
Front-Center Horizontal	714.6mm	750.4mm	786.4mm	823.4mm
Wheelbase	1148mm	1184mm	1223mm	1264mm
Fork Offset/Rake	44mm	44mm	44mm	44mm
Fork Length, Unknown	531mm	531mm	531mm	531mm
Trail	114.7mm very high	114.7mm very high	114.7mm very high	114.7mm very high
Mechanical Trail	105mm	105mm	105mm	105mm
Wheel Flop	42.2mm	42.2mm	42.2mm	42.2mm
Standover Height	749mm	755mm	757mm	764mm
Tire to Pedal Spindle	180.3mm 165 mm cranks	211.3mm 170 mm cranks	247.3mm 170 mm cranks	282.3mm 170 mm cranks
Pedal Spindle to Ground Clearance	168.7mm 165 mm cranks	165.7mm 170 mm cranks	165.7mm 170 mm cranks	165.7mm 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 Specialized Bicycles Epic S-Works

Geometry