2023 Specialized Bicycles Aethos Dura Ace Di2

	49	52	54	56	58	61
Stack	514mm	527mm	544mm	565mm	591mm	612mm
Reach	375mm	380mm	384mm	395mm	402mm	408mm
Stack to Reach Ratio	1.37:1	1.39:1	1.42:1	1.43:1	1.47:1	1.5:1
Seat Tube Length, Unknown	431mm	462mm	481mm	504mm	532mm	567mm
Top Tube Length, Effective/Horizontal Center	508mm	531mm	540mm	562mm	577mm	595mm
Top Tube Slope	11.3deg	9.3deg	9deg	8.6deg	8.3deg	6.9deg
Head Tube Angle	71.75deg	72.5deg	73deg	73.5deg	73.5deg	74deg
Seat Tube Angle	75.5deg	74deg	74deg	73.5deg	73.5deg	73deg
Head Tube Length	109mm	120mm	137mm	157mm	184mm	204mm
Bottom Bracket Drop	74mm	74mm	72mm	72mm	72mm	72mm
Bottom Bracket Height	265mm	265mm	267mm	267mm	267mm	267mm
Chainstay Length	410mm	410mm	410mm	410mm	410mm	410mm
Chainstay Length Horizontal	403.3mm	403.3mm	403.6mm	403.6mm	403.6mm	403.6mm
Front-Center	574mm	577mm	579mm	591mm	606mm	613mm
Front-Center Horizontal	569.7mm	571.7mm	574.4mm	587.4mm	601.4mm	608.4mm
Wheelbase	973mm	975mm	978mm	991mm	1005mm	1012mm
Fork Offset/Rake	47mm	47mm	44mm	44mm	44mm	44mm
Fork Length, Unknown	369mm	369mm	369mm	369mm	369mm	369mm
Trail	62.3mm mid/neutral	57.6mm mid/neutral	57.6mm mid/neutral	54.5mm mid/neutral	54.5mm mid/neutral	51.4mm mid/neutral
Mechanical Trail	59.2mm	54.9mm	55.1mm	52.3mm	52.3mm	49.4mm
Wheel Flop	18.5mm	16.5mm	16.1mm	14.9mm	14.9mm	13.6mm
Standover Height	705mm	728mm	748mm	769mm	796mm	824mm
Tire to Pedal Spindle	70mm 165 mm cranks	68mm 170 mm cranks	67.5mm 172.5 mm cranks	79.5mm 172.5 mm cranks	92mm 175 mm cranks	99mm 175 mm cranks
Pedal Spindle to Ground Clearance	100mm 165 mm cranks	95mm 170 mm cranks	94.5mm 172.5 mm cranks	94.5mm 172.5 mm cranks	92mm 175 mm cranks	92mm 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	28mm	28mm	28mm	28mm	28mm	28mm
Tire Width Max	32mm	32mm	32mm	32mm	32mm	32mm
Tire Outer Diameter	678mm	678mm	678mm	678mm	678mm	678mm
Bike Length with Tires	1651mm	1653mm	1656mm	1669mm	1683mm	1690mm
Crank Length	165mm	170mm	172.5mm	172.5mm	175mm	175mm
Handlebar Width	380mm	400mm	420mm	420mm	440mm	440mm
Stem Length	80mm	90mm	100mm	100mm	110mm	110mm
Stem Angle	6deg	6deg	6deg	6deg	6deg	6deg

Published Sizing Recommendations

Height

5 ft 1 in

5 ft 4 in

5 ft 7 in

5 ft 9 in

5 ft 11 in

6 ft 2 in

6 ft 5 in

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/us/en/s-works-aethos---dura-ace-di2/p/216930?color=349961-216930