Image of Specialized Aethos Pro Ultegra Di2
2021

Specialized Aethos Pro Ultegra Di2

Specialized Aethos Pro Ultegra Di2 2021

7800.0

General Endurance

Colour / Satin Blue Murano/Carbon/Cobalt

Size / 49cm, 52cm, 54cm, 56cm, 58cm, 61cm

At a glance

The 2021 Specialized Aethos Pro Ultegra Di2 is a General and Endurance carbon road bike. It is priced at $7,800 USD, comes in a range of sizes, including 49cm, 52cm, 54cm, 56cm, 58cm, 61cm and a shimano drivetrain. The bike is part of Specialized's Aethos Pro Ultegra Di2 range of road bikes.

- The Aethos line promises three things: unprecedented weight savings, perfectly-balanced ride quality, and undeniable style. For the Aethos Pro, we threw out the rulebook to create the ride of your life.

- The Aethos frame has been designed with the perfect combination of ultimate ride feel, light weight, and style—from accelerating up steep pitches and descending technical descents, to all-day saddle comfort on even the longest coffee rides, the Aethos hits the mark. But how, you ask? By reinventing the traditional road shape found on bikes of the past, we’ve subtly altered these shapes to deliver massive gains in stiffness and balance, all without affecting weight or durability. Pair that with an entirely new layup and process that we’ve perfected over multiple decades, and you have the lightest frame out there (585 grams, S-Works, size 56cm).

The Aethos is more than just a new bike, it’s the first of a new breed.

- A featherweight frame is useless without confidence-inspiring ride characteristics, which is why we’ve developed the Aethos to have the perfect balance of front and rear stiffness combined with exceptional ride quality. By studying the flexing and breathing of carbon fiber, we were able to discover groundbreaking findings about how forces flow through frames. Just a few pedal strokes and you’ll realize this sublime ride sets a new standard.

- Every detail, from the derailleur hangers to the fork expander plug have been designed with style, weight, and durability in mind—everything in pursuit of the perfect ride.

Where To Buy

Reviews

Specifications

Frameset
  • Frame
    Aethos FACT 10r Carbon, Rider First Engineered, Threaded BB, 12x142mm thru-axle, flat-mount disc
Wheels
  • Tires
    [F] S-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700c x 26
Drivetrain
  • Chain
    Shimano Ultegra, 11-speed
  • Crank
    Shimano Ultegra R8000, HollowTech 2, 11-speed
  • Front Derailleur
    Shimano Ultegra Di2 R8050, braze-on
  • Rear Derailleur
    Shimano Ultegra Di2 R8050, GS medium cage
  • Shifters
    Shimano Ultegra Di2 Disc R8070
Components
  • Brakeset
    Shimano Ultegra R8070, hydraulic disc
  • Handlebar
    S-Works Short & Shallow
  • Saddle
    Body Geometry Power Pro, Hollow Titanium Rails, Carbon Fiber Base
  • Seatpost
    Roval Alpinist Carbon Seatpost
  • Stem
    Specialized Pro SL, alloy, 4-bolt
  • Grips
    Supacaz Super Sticky Kush

FAQ

Q: How much is a 2021 Specialized Aethos Pro Ultegra Di2?

A 2021 Specialized Aethos Pro Ultegra Di2 is typically priced around $7,800 USD when new. Be sure to shop around for the best price, and also look to the used market for a great deal.

Q: What size 2021 Specialized Aethos Pro Ultegra Di2 should I get?

The 2021 Specialized Aethos Pro Ultegra Di2 comes in sizes 49cm, 52cm, 54cm, 56cm, 58cm, 61cm. After measuring your height, use the size chart below to find the typical Specialized Aethos Pro Ultegra Di2 size for your height. Remember that these sizes are a general guide and bike sizes can vary between riders and bikes. The best way to find your size is to go for a test ride.

Rider Height (cm) Rider Height (in) Frame Size
148cm - 158cm 4'10" - 5'2" XS
158cm - 168cm 5'2" - 5'6" S
168cm - 178cm 5'6" - 5' 10" M
178cm - 185cm 5'10" - 6'1" L
185cm - 193cm 6'1" - 6'4" XL
193cm - 198cm 6'4" - 6'6" XXL

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