2021 Specialized Bicycles Aethos Base 49

Build

700C/29 in × 26 mm

Insights

Average stack and reach vs trend of performance road bikes
Design deviates from other sizes of Specialized Bicycles Aethos

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
514mm
Reach
375mm
Stack to Reach Ratio
1.37:1
Seat Tube Length, C-T
431mm
Top Tube Length, Effective/Horizontal Center
508mm
Top Tube Slope
11.3deg
Head Tube Angle
71.75deg
Seat Tube Angle
75.5deg
Head Tube Length
109mm
Bottom Bracket Drop
74mm
Bottom Bracket Height
263mm
Chainstay Length
410mm
Chainstay Length Horizontal
403.3mm
Front-Center
574mm
Front-Center Horizontal
569.7mm
Wheelbase
973mm
Fork Offset/Rake
47mm
Fork Length (Axle-To-Crown)
369mm
Trail
61.6mm
mid/​neutral
Mechanical Trail
58.5mm
Wheel Flop
18.3mm
Standover Height
705mm
Tire to Pedal Spindle Distance
With 165 mm cranks
72mm
Pedal Spindle to Ground Clearance
With 165 mm cranks
98mm

Base Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
26mm
Tire Outer Diameter
674mm
Bike Length with Tires
1647mm
Crank Length
165mm
Handlebar Width
380mm
Stem Length
80mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Drop Bar
Frame Material
Carbon/Composite
Fork Material
Carbon/Composite
Brake Type
Disc
Source:https://www.specialized.com/us/en/s-works-aethos---dura-ace-di2/p/187062?color=299404-187062&searchText=97221-0149