Specialized Aethos 2 Expert Ultegra Di2

Specialized Aethos 2 Expert Ultegra Di2 Overview

The Specialized Aethos 2 Expert Ultegra Di2 is a lightweight road bike built with an Aethos 2 FACT 10r carbon frame, matching FACT 10r carbon fork, and Shimano Ultegra Di2 12-speed drivetrain. The frame uses Rider First Engineered construction, a threaded bottom bracket, hidden cable routing, 12x142mm rear thru-axle spacing, and flat-mount disc brake compatibility.

This build pairs Shimano Ultegra Di2 R8170 hydraulic disc shift levers with Shimano Ultegra Di2 R8150 front and rear derailleurs. The drivetrain includes a Shimano Ultegra 11-30t 12-speed cassette, Shimano XT CN-M8100 12-speed chain, Shimano Threaded BSA bottom bracket, and Shimano Ultegra R8100 52/36t crankset.

The bike uses Roval C38 carbon wheels with 21mm internal width rims, with the rear wheel specified as tubeless ready. S-Works Turbo 700×28 tires, a Specialized Pro SL alloy stem, Roval Alpinist Carbon Handlebar, Body Geometry Power Expert saddle, and Roval Alpinist Carbon Seatpost complete the build. The tubeless weight is 7.12 kg / 15 lb 11.2 oz in size 56.

Key Features of Specialized Aethos 2 Expert Ultegra Di2

• Aethos 2 FACT 10r carbon frame and fork create a lightweight road platform with hidden cable routing and flat-mount disc compatibility.
• Shimano Ultegra Di2 R8170 shift levers and R8150 derailleurs deliver 12-speed Di2 shifting.
• Shimano Ultegra BR-R8170 hydraulic brakes handle braking at the front and rear.
• Shimano Ultegra R8100 52/36t crankset is paired with a Shimano Threaded BSA bottom bracket.
• Shimano Ultegra 12-speed 11-30t cassette gives the drivetrain its stated gear range.
• Roval C38 carbon wheels use 21mm internal width rims, with the rear wheel specified as tubeless ready.
• S-Works Turbo 700×28 tires match the road-focused build.
• Roval Alpinist Carbon Handlebar, Specialized Pro SL alloy stem, and Roval Alpinist Carbon Seatpost complete the cockpit and seating package.

Ride Use

This bike is built for lightweight road riding, supported by its FACT 10r carbon frame, FACT 10r carbon fork, Roval C38 carbon wheels, and 7.12 kg tubeless weight. The Shimano Ultegra Di2 12-speed drivetrain, Ultegra hydraulic brakes, 700×28 tires, and carbon cockpit parts give it a road-focused component package.

Why Choose This Bike

Choose this bike for a lightweight road build centered on the Aethos 2 FACT 10r carbon frame and Shimano Ultegra Di2 drivetrain. It combines Ultegra hydraulic brakes, a Shimano Ultegra R8100 52/36t crankset, Roval C38 carbon wheels, S-Works Turbo 700×28 tires, and a 7.12 kg tubeless weight in size 56. The color is Gloss Dolomite Metallic, with frame and fork covered by a lifetime warranty for the original owner and other Specialized-branded parts covered for 2 years.