2023 Specialized Bicycles roubaix expert Base

	44	49	52	54	56	58	61	64
Stack	540mm	555mm	570mm	585mm	605mm	630mm	665mm	675mm
Reach	353mm	363mm	368mm	376mm	384mm	392mm	398mm	404mm
Stack to Reach Ratio	1.53:1	1.53:1	1.55:1	1.56:1	1.58:1	1.61:1	1.67:1	1.67:1
Seat Tube Length, Unknown	365mm	410mm	446mm	465mm	485mm	505mm	547mm	568mm
Top Tube Length, Effective/Horizontal Center	512mm	525mm	533mm	545mm	563mm	579mm	595mm	609mm
Top Tube Slope	22.6deg	18.7deg	16.1deg	15.3deg	15deg	15.2deg	14.3deg	13deg
Head Tube Angle	70deg	71.5deg	72deg	72.75deg	73.5deg	73.5deg	74deg	74deg
Seat Tube Angle	74deg	74deg	74deg	74deg	73.5deg	73.5deg	73.5deg	73deg
Head Tube Length	90mm	100mm	112mm	125mm	143mm	170mm	205mm	215mm
Bottom Bracket Drop	77.5mm	77.5mm	77.5mm	76mm	76mm	74.5mm	74.5mm	74.5mm
Bottom Bracket Height	263.5mm	263.5mm	263.5mm	265mm	265mm	266.5mm	266.5mm	266.5mm
Chainstay Length	413mm	413mm	413mm	415mm	415mm	418mm	418mm	418mm
Chainstay Length Horizontal	405.7mm	405.7mm	405.7mm	408mm	408mm	411.3mm	411.3mm	411.3mm
Front-Center	580mm	581mm	586mm	585mm	592mm	607mm	618mm	626mm
Front-Center Horizontal	575.3mm	576.3mm	580.3mm	580mm	587mm	602.7mm	612.7mm	621.7mm
Wheelbase	981mm	982mm	986mm	988mm	995mm	1014mm	1024mm	1033mm
Fork Offset/Rake	50mm	50mm	50mm	44mm	44mm	44mm	44mm	44mm
Fork Length, Unknown	370mm	370mm	370mm	370mm	370mm	370mm	370mm	370mm
Trail	70.9mm high	61.4mm mid/neutral	58.2mm mid/neutral	59.8mm mid/neutral	55.1mm mid/neutral	55.1mm mid/neutral	52mm mid/neutral	52mm mid/neutral
Mechanical Trail	66.6mm	58.2mm	55.4mm	57.1mm	52.9mm	52.9mm	50mm	50mm
Wheel Flop	22.8mm	18.5mm	17.1mm	16.9mm	15mm	15mm	13.8mm	13.8mm
Standover Height	682mm	715mm	743mm	762mm	783mm	805mm	844mm	862mm
Tire to Pedal Spindle	74mm 165 mm cranks	75mm 165 mm cranks	75mm 170 mm cranks	71.5mm 172.5 mm cranks	78.5mm 172.5 mm cranks	91mm 175 mm cranks	102mm 175 mm cranks	110mm 175 mm cranks
Pedal Spindle to Ground Clearance	98.5mm 165 mm cranks	98.5mm 165 mm cranks	93.5mm 170 mm cranks	92.5mm 172.5 mm cranks	92.5mm 172.5 mm cranks	91.5mm 175 mm cranks	91.5mm 175 mm cranks	91.5mm 175 mm cranks

	44	49	52	54	56	58	61	64
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	700C/29 in 622 mm BSD
Tire Width	30mm	30mm	30mm	30mm	30mm	30mm	30mm	30mm
Tire Outer Diameter	682mm	682mm	682mm	682mm	682mm	682mm	682mm	682mm
Bike Length with Tires	1663mm	1664mm	1668mm	1670mm	1677mm	1696mm	1706mm	1715mm
Crank Length	165mm	165mm	170mm	172.5mm	172.5mm	175mm	175mm	175mm
Handlebar Width	360mm	380mm	400mm	420mm	420mm	440mm	440mm	440mm
Stem Length	70mm	80mm	90mm	100mm	100mm	110mm	110mm	120mm

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-expert/p/199908?color=321717-199908

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2023 Specialized Bicycles roubaix expert Base

Geometry

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Stack and Reach vs. Category Trend