Product Info
Details + Specs
Aethos 2 Pro - Shimano Ultegra Di2
Pure road performance
With a 705g frame, the Aethos 2 is the lightest bike in its class. But weight was never the point. Built by breaking racing's rules to deliver pure road riding bliss, it's engineered to disappear beneath you — responsive, supple, and sublime.
Best for: Lightweight road performance, climbing and all-day premium road riding.
At a glance
Frame
Aethos 2 FACT 10r Carbon, Rider First Engineered™, threaded BB, hidden…
Drivetrain
Shimano Ultegra Di2 R8150, 12-speed
Brakes
Shimano Ultegra BR-R8170, hydraulic disc
Weight
6.73 kg / 14lb 13.4oz (size 56)
Fork
Aethos 2 FACT 10r Carbon, 12x100mm thru-axle, flat-mount disc
Front Brake
Shimano Ultegra BR-R8170, hydraulic disc
Key highlights
a 705-gram Rider First Engineered™ frame — the lightest in its class — built for a supple, disappear-beneath-you ride feel.
12-speed wireless electronic shifting paired with a 4iiii Precision 3+ single-sided power meter on the crank.
a lightweight carbon wheelset and integrated bar/stem combo tuned for all-day performance riding.
700x28c tubeless-ready race tyres for a fast, confident ride on real roads.
Complete specification
Full build details
Components are grouped by bike system so the complete build is easy to scan.
Frameset
Frame
Aethos 2 FACT 10r Carbon, Rider First Engineered™, threaded BB, hidden cable routing, 12x142mm thru-axle, flat-mount disc (705g)
Suspension
Fork
Aethos 2 FACT 10r Carbon, 12x100mm thru-axle, flat-mount disc
Brakes
Front Brake
Shimano Ultegra BR-R8170, hydraulic disc
Rear Brake
Shimano Ultegra BR-R8170, hydraulic disc
Drivetrain
Shift Levers
Shimano Ultegra Di2 R8170, hydraulic disc
Front Derailleur
Shimano Ultegra Di2 R8150, braze-on
Rear Derailleur
Shimano Ultegra Di2 R8150, 12-speed
Cassette
Shimano Ultegra, 12-speed, 11-30t
Chain
Shimano XT M8100, 12-speed
Crankset
Shimano Ultegra R8100 with 4iiii Precision 3+ single-sided power meter, 52/36t
Bottom Bracket
Shimano, threaded BSA
Wheels and tyres
Wheels
Roval Alpinist CL II, 21mm internal width carbon, 33mm depth (front and rear)
Tyres
S-Works Turbo TLR, 700x28c, Tubeless Ready
Cockpit and contact points
Handlebar/Stem
Roval Alpinist Cockpit II, integrated carbon bar/stem
Seatpost
Roval Alpinist Carbon
Saddle
Body Geometry Power Pro Mirror, hollow Ti rails
Weight and sizing
Weight
6.73 kg / 14lb 13.4oz (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.