2022 Specialized Bicycles Aethos Base

Design
Drop Bar, Rigid, non-suspension corrected
Frame
Carbon/Composite
Fork
Carbon/Composite
Features
Disc brake
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category

Geometry

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, C-T
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
263mm
263mm
265mm
265mm
265mm
265mm
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 (Axle-To-Crown)
369mm
369mm
369mm
369mm
369mm
369mm
Trail
61.6mm
mid/​neutral
57mm
mid/​neutral
57mm
mid/​neutral
53.9mm
mid/​neutral
53.9mm
mid/​neutral
50.9mm
mid/​neutral
Mechanical Trail
58.5mm
54.3mm
54.5mm
51.7mm
51.7mm
48.9mm
Wheel Flop
18.3mm
16.3mm
15.9mm
14.7mm
14.7mm
13.5mm
Standover Height
705mm
728mm
748mm
769mm
796mm
824mm
Tire to Pedal Spindle
67mm
170 mm cranks
70mm
170 mm cranks
72mm
170 mm cranks
84mm
170 mm cranks
99mm
170 mm cranks
106mm
170 mm cranks
Pedal Spindle to Ground Clearance
93mm
170 mm cranks
93mm
170 mm cranks
95mm
170 mm cranks
95mm
170 mm cranks
95mm
170 mm cranks
95mm
170 mm cranks

Base Build

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
26mm
26mm
26mm
26mm
26mm
26mm
Tire Outer Diameter
674mm
674mm
674mm
674mm
674mm
674mm
Bike Length with Tires
1647mm
1649mm
1652mm
1665mm
1679mm
1686mm

Published Sizing Recommendations

Height
155 cm
to
163 cm
163 cm
to
170 cm
170 cm
to
175 cm
175 cm
to
180 cm
180 cm
to
188 cm
188 cm
to
196 cm

Stack and Reach vs. Category Trend

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:https://www.specialized.com/fr/en/s-works-aethos---sram-red-etap-axs/p/199443?color=321743-199443