Product Info
Details + Specs
S-Works Aethos 2 - Shimano Dura-Ace Di2
Pure road performance
At just 595 grams, the S-Works Aethos 2 is the lightest production road frame in the world. But that was never the point. Built by breaking the rules of racing to deliver pure road riding bliss, Aethos 2 is engineered to disappear beneath you — impossibly responsive, supple, and sublime.
Best for: Lightweight road performance, climbing and all-day premium road riding.
At a glance
Frame
S-Works Aethos 2 FACT 12r Carbon, Rider First Engineered™, Ceramic Speed…
Drivetrain
Shimano Dura-Ace Di2 R9250, 12-speed
Brakes
Shimano Dura-Ace BR-R9270, hydraulic disc
Weight
6.05 kg (size 56)
Fork
S-Works Aethos 2 FACT 12r Carbon, 12x100mm thru-axle, flat-mount disc
Front Brake
Shimano Dura-Ace BR-R9270, hydraulic disc
Key highlights
the S-Works Aethos 2 FACT 12r Carbon frame weighs just 595 grams, engineered to disappear beneath you.
flagship 12-speed electronic shifting paired with a 4iiii Precision Pro dual-sided power meter for race-precision data.
a one-piece carbon bar/stem and 33mm-depth carbon wheels combine low weight with genuine aero benefit.
data-based fit-enhancing geometry and room for wider rubber bring the Aethos 2's transcendent ride feel to more riders than ever.
Complete specification
Full build details
Components are grouped by bike system so the complete build is easy to scan.
Frameset
Frame
S-Works Aethos 2 FACT 12r Carbon, Rider First Engineered™, Ceramic Speed SLT headset bearings, threaded BB, hidden cable routing, 12x142mm thru-axle, flat-mount disc
Suspension
Fork
S-Works Aethos 2 FACT 12r Carbon, 12x100mm thru-axle, flat-mount disc
Brakes
Front Brake
Shimano Dura-Ace BR-R9270, hydraulic disc
Rear Brake
Shimano Dura-Ace BR-R9270, hydraulic disc
Drivetrain
Shift Levers
Shimano Dura-Ace Di2 R9270, hydraulic disc
Front Derailleur
Shimano Dura-Ace Di2 R9250, braze-on
Rear Derailleur
Shimano Dura-Ace Di2 R9250, 12-speed
Cassette
Shimano Dura-Ace, 12-speed, 11-30t
Chain
Shimano XTR M9100, 12-speed, with quick link
Crankset
Shimano Dura-Ace R9200, HollowTech II, 12-speed, with 4iiii Precision Pro dual-sided power meter, 52/36t
Bottom Bracket
Shimano Dura-Ace, BB-R9100
Wheels and tyres
Wheels
Roval Alpinist CLX III, tubeless ready, 21mm internal width carbon rim, 33mm depth
Tyres
S-Works Turbo TLR Race, 700x28c
Cockpit and contact points
Handlebar/Stem
Roval Alpinist Cockpit II, integrated bar/stem
Seatpost
Roval Alpinist Carbon, lightweight clamp
Saddle
S-Works Power with Mirror
Weight and sizing
Weight
6.05 kg (size 56)
Weight is based on a production painted bike in the stated reference size. Actual weight can vary with colour, size and component variation. Specifications are subject to change without notice.