2017 Specialized Tarmac SL4 Sport Base

	49	52	54	56	58	61
Stack	505mm	526mm	543mm	564mm	591mm	612mm
Reach	386mm	386mm	387mm	395mm	402mm	408mm
Stack to Reach Ratio	1.31:1	1.36:1	1.4:1	1.43:1	1.47:1	1.5:1
Seat Tube Length, C-T	460mm	490mm	510mm	530mm	550mm	580mm
Top Tube Length, Effective/Horizontal Center	517mm	537mm	548mm	565mm	583mm	601mm
Top Tube Slope	6.8deg	6deg	5.8deg	5.9deg	6.6deg	5.8deg
Head Tube Angle	72.25deg	73deg	73deg	73.5deg	73.5deg	74deg
Seat Tube Angle	75.5deg	74deg	73.5deg	73.25deg	73deg	72.5deg
Head Tube Length	100mm	120mm	140mm	160mm	190mm	210mm
Bottom Bracket Drop	72mm	72mm	69mm	69mm	68mm	68mm
Bottom Bracket Height	262mm	262mm	265mm	265mm	266mm	266mm
Chainstay Length	405mm	405mm	405mm	405mm	407mm	410mm
Chainstay Length Horizontal	398.6mm	398.6mm	399.1mm	399.1mm	401.3mm	404.3mm
Front-Center	575mm	576mm	582mm	591mm	607mm	614mm
Front-Center Horizontal	571.5mm	571.5mm	577.9mm	587.9mm	602.7mm	609.7mm
Wheelbase	970mm	970mm	977mm	987mm	1004mm	1014mm
Fork Offset/Rake	44.6mm	44.6mm	44mm	44.4mm	43.9mm	43.9mm
Fork Length, Unknown	368mm	368mm	368mm	368mm	368mm	368mm
Trail	60.1mm mid/neutral	55.5mm mid/neutral	56.1mm mid/neutral	52.6mm mid/neutral	53.1mm mid/neutral	50.1mm mid/neutral
Mechanical Trail	57.2mm	53mm	53.7mm	50.5mm	51mm	48.1mm
Wheel Flop	17.4mm	15.5mm	15.7mm	14.3mm	14.5mm	13.3mm
Standover Height	730mm	755mm	775mm	795mm	826mm	850mm
Tire to Pedal Spindle	71mm 170 mm cranks	72mm 170 mm cranks	75.5mm 172.5 mm cranks	84.5mm 172.5 mm cranks	98mm 175 mm cranks	105mm 175 mm cranks
Pedal Spindle to Ground Clearance	92mm 170 mm cranks	92mm 170 mm cranks	92.5mm 172.5 mm cranks	92.5mm 172.5 mm cranks	91mm 175 mm cranks	91mm 175 mm cranks

	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
Tire Width	23mm	23mm	23mm	23mm	23mm	23mm
Tire Outer Diameter	668mm	668mm	668mm	668mm	668mm	668mm
Bike Length with Tires	1638mm	1638mm	1645mm	1655mm	1672mm	1682mm
Crank Length	170mm	170mm	172.5mm	172.5mm	175mm	175mm
Handlebar Width	400mm	420mm	420mm	420mm	440mm	440mm
Stem Length	70mm	80mm	90mm	100mm	100mm	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.

Category Trend

Source:https://www.specialized.com/pl/pl/tarmac-sl4-sport/p/115443?color=208582-115443

Geometry