2019 Specialized Bicycles Tarmac Base

	44	49	52	54	56	58	61
Stack	500mm	514mm	527mm	544mm	565mm	591mm	612mm
Reach	365mm	375mm	380mm	384mm	395mm	402mm	408mm
Stack to Reach Ratio	1.37:1	1.37:1	1.39:1	1.42:1	1.43:1	1.47:1	1.5:1
Seat Tube Length, Unknown	400mm	431mm	462mm	481mm	501mm	522mm	553mm
Top Tube Length, Effective/Horizontal Center	490mm	508mm	531mm	540mm	562mm	577mm	595mm
Top Tube Slope	13.6deg	11.3deg	9.3deg	9deg	9deg	9.3deg	8.3deg
Head Tube Angle	70.5deg	71.75deg	72.5deg	73deg	73.5deg	73.5deg	74deg
Seat Tube Angle	76deg	75.5deg	74deg	74deg	73.5deg	73.5deg	73deg
Head Tube Length	105mm	115mm	126mm	143mm	163mm	190mm	210mm
Bottom Bracket Drop	74mm	74mm	74mm	72mm	72mm	72mm	72mm
Bottom Bracket Height	262mm	262mm	262mm	264mm	264mm	264mm	264mm
Chainstay Length	410mm	410mm	410mm	410mm	410mm	410mm	410mm
Chainstay Length Horizontal	403.3mm	403.3mm	403.3mm	403.6mm	403.6mm	403.6mm	403.6mm
Front-Center	571mm	574mm	577mm	579mm	591mm	606mm	613mm
Front-Center Horizontal	565.7mm	569.7mm	571.7mm	574.4mm	586.4mm	601.4mm	608.4mm
Wheelbase	969mm	973mm	975mm	978mm	990mm	1005mm	1012mm
Fork Offset/Rake	47mm	47.2mm	46.6mm	44.1mm	43.5mm	43.8mm	43.8mm
Fork Length, Unknown	363mm	363mm	363mm	363mm	363mm	363mm	363mm
Trail	69.1mm high	61.2mm mid/neutral	57mm mid/neutral	56.7mm mid/neutral	54.2mm mid/neutral	53.9mm mid/neutral	50.8mm mid/neutral
Mechanical Trail	65.1mm	58.1mm	54.4mm	54.2mm	52mm	51.7mm	48.9mm
Wheel Flop	21.7mm	18.2mm	16.4mm	15.8mm	14.8mm	14.7mm	13.5mm
Standover Height	730mm	740mm	755mm	775mm	795mm	826mm	850mm
Tire to Pedal Spindle	65mm 170 mm cranks	68mm 170 mm cranks	71mm 170 mm cranks	73mm 170 mm cranks	85mm 170 mm cranks	100mm 170 mm cranks	107mm 170 mm cranks
Pedal Spindle to Ground Clearance	92mm 170 mm cranks	92mm 170 mm cranks	92mm 170 mm cranks	94mm 170 mm cranks	94mm 170 mm cranks	94mm 170 mm cranks	94mm 170 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	25mm	25mm	25mm	25mm	25mm	25mm	25mm
Tire Outer Diameter	672mm	672mm	672mm	672mm	672mm	672mm	672mm
Bike Length with Tires	1641mm	1645mm	1647mm	1650mm	1662mm	1677mm	1684mm

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

Performance Road

Source:specialized.com

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2019 Specialized Bicycles Tarmac Base

Geometry

Base Build

Stack and Reach vs. Category Trend