2023 Specialized Bicycles Roubaix Expert

	44	49	52	54	56	58	61
Stack	543mm	549mm	566mm	585mm	605mm	630mm	665mm
Reach	353mm	363mm	370mm	381mm	389mm	397mm	403mm
Stack to Reach Ratio	1.54:1	1.51:1	1.53:1	1.54:1	1.56:1	1.59:1	1.65:1
Seat Tube Length, Unknown	365mm	410mm	446mm	465mm	485mm	505mm	545mm
Top Tube Length, Effective/Horizontal Center	503mm	523mm	534mm	550mm	569mm	584mm	600mm
Top Tube Slope	23.1deg	18deg	15.6deg	15.2deg	14.9deg	15.1deg	14.3deg
Head Tube Angle	69.3deg	70.8deg	71.5deg	72.3deg	73deg	73deg	73.5deg
Seat Tube Angle	75deg	74deg	74deg	74deg	73.5deg	73.5deg	73.5deg
Head Tube Length	90mm	90mm	105mm	122mm	140mm	168mm	202mm
Bottom Bracket Drop	80mm	80mm	80mm	78mm	78mm	78mm	78mm
Bottom Bracket Height	263mm	263mm	263mm	265mm	265mm	265mm	265mm
Chainstay Length	418mm	418mm	418mm	420mm	420mm	423mm	423mm
Chainstay Length Horizontal	410.3mm	410.3mm	410.3mm	412.7mm	412.7mm	415.8mm	415.8mm
Front-Center	589mm	587mm	593mm	598mm	604mm	620mm	631mm
Front-Center Horizontal	583.7mm	581.7mm	587.7mm	592.3mm	599.3mm	615.3mm	626.3mm
Wheelbase	994mm	992mm	998mm	1005mm	1012mm	1031mm	1042mm
Fork Offset/Rake	52.2mm	52.3mm	52.3mm	47.2mm	47mm	47.3mm	47.3mm
Fork Length, Unknown	375mm	375mm	375mm	375mm	375mm	375mm	375mm
Trail	73.8mm high	64mm mid/neutral	59.7mm mid/neutral	60mm mid/neutral	55.7mm mid/neutral	55.4mm mid/neutral	52.2mm mid/neutral
Mechanical Trail	69.1mm	60.5mm	56.6mm	57.1mm	53.3mm	53mm	50.1mm
Wheel Flop	24.4mm	19.9mm	18mm	17.4mm	15.6mm	15.5mm	14.2mm
Standover Height	686mm	719mm	747mm	766mm	787mm	809mm	847mm
Tire to Pedal Spindle	81mm 165 mm cranks	79mm 165 mm cranks	80mm 170 mm cranks	82.5mm 172.5 mm cranks	88.5mm 172.5 mm cranks	102mm 175 mm cranks	113mm 175 mm cranks
Pedal Spindle to Ground Clearance	98mm 165 mm cranks	98mm 165 mm cranks	93mm 170 mm cranks	92.5mm 172.5 mm cranks	92.5mm 172.5 mm cranks	90mm 175 mm cranks	90mm 175 mm cranks

	44	49	52	54	56	58	61
Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	32mm	32mm	32mm	32mm	32mm	32mm	32mm
Tire Width Max	40mm	40mm	40mm	40mm	40mm	40mm	40mm
Tire Outer Diameter	686mm	686mm	686mm	686mm	686mm	686mm	686mm
Bike Length with Tires	1680mm	1678mm	1684mm	1691mm	1698mm	1717mm	1728mm
Crank Length	165mm	165mm	170mm	172.5mm	172.5mm	175mm	175mm
Handlebar Width	360mm	380mm	400mm	420mm	420mm	440mm	440mm
Stem Length	70mm	80mm	90mm	100mm	100mm	110mm	110mm

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.

Learn more about the Upright/Aggressive Scale

Category Trend

Endurance Road

Source:https://www.specialized.com/us/en/roubaix-sl8-expert/p/216943?color=349829-216943

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2023 Specialized Bicycles Roubaix Expert

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Stack and Reach vs. Category Trend