2026 Specialized Aethos 2 Expert – Shimano Ultegra Di2
Use
Performance Road Riding
Frameset
705g FACT 10r Frame / FACT 10r Fork
Fit
Performance Endurance
Cockpit & Wheels
Roval Alpinist bar, Pro SL stem, C38 wheels
Drivetrain
Shimano Ultegra Di2
Weight
7.12kg (56cm)
Frameset
Frame
Aethos 2 FACT 10r Carbon, Rider First Engineered™, Threaded BB, Hidden Cable Routing, 12x142mm thru-axle, flat-mount disc
Suspension
Fork
Aethos 2 FACT 10r Carbon, 12x100mm thru-axle, flat-mount disc
Brakes
Front Brake
Shimano Ultegra BR-R8170 Hydraulic Brake
Rear Brake
Shimano Ultegra BR-R8170 Hydraulic Brake
Drivetrain
Bottom Bracket
Shimano Threaded BSA BB
Rear Derailleur
Shimano Ultegra Di2 R8150, 12-speed
Front Derailleur
Shimano Ultegra Di2 R8150, braze-on
Shift Levers
Shimano Ultegra Di2 R8170, hydraulic disc
Crankset
Shimano Ultegra R8100, 52/36t
Cassette
Shimano Ultegra, 12-speed, 11-30t
Chain
Shimano XT M8100, 12-speed w/ quick link
Wheels & Tyres
Inner Tubes
700×20-28, 48mm Presta Valve
Front Wheel
Roval C38, 21mm internal width carbon rim
Rear Wheel
Roval C38, 21mm internal width carbon rim
Front Tyre
S-Works Turbo, 700×28
Rear Tyre
S-Works Turbo, 700×28
Cockpit
Saddle
Body Geometry Power Expert
Handlebars
Roval Alpinist Carbon Handlebar, 125mm drop, 75mm reach
SeatPost
Roval Alpinist Carbon Seatpost
Seat Binder
Specialized Alloy, 30mm
Stem
Specialized Pro SL, alloy, 4-bolt
Tape
Supacaz Super Sticky Kush