Specialized Aethos Pro Road bike | Satin Red Sky Red Onyx
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Specialized Aethos Pro Road bike | Satin Red Sky Red Onyx
BREAK THE RULES
What if we used every ounce of experience we’ve gained serving riders over the past 46 years and built a bike made simply for the love of riding? When we set out on this project, we promised ourselves that we would make a bike that elevated the moments when human and machine become one, when we lose ourselves dancing up a climb or carving through a turn. Well, we did it, and in keeping that promise, we broke every design, ride, and race rule along the way. And we’re not sorry.
ONE EPIPHANY
An almost out of body test lab experience birthed Aethos. Meditating on the breathing and swaying of a bike under load in the lab, lead engineer Peter Denk had an epiphany when he realized that true performance lies in the shape, not the material. After a few hundred thousand supercomputer simulations, we knew we were right.
A frame’s shape is what drives the vast majority of a bike’s performance. Through our obsessive simulation, we learned that tubes with subtle, elongated conical sections - aka our Continuous Curvature Design strategy - deliver the highest stiffness-to-weight ratio ever tested. Turns out the obsessive Germans at the Zedler Institute agree with us.
NO LAZY FIBERS
This discovery of shape driving performance then gave us the opportunity to improve the ride quality delivered by material and layup. We were able to eliminate traditional stiffness layers, reducing the plies necessary to build the bike by 11% compared to a Tarmac SL6. Utilizing longer, unbroken plies, every fiber is structural and reduces weight substantially. This ensures that the only thing along for the ride is you.
RULES? WHAT RULES?
Turns out, this bike may be *illegal in some circles. With Aethos, we chased ride quality, not a number, but we know a light, stiff, and balanced bike is magic at the pedals. The result? The lightest disc road frame ever produced with builds as light as 5.9kg, and all with the telepathic handling, response, and stiffness targets you’ve come to expect from every bike we make \(*Psst…don’t tell the UCI\).
PERFECTION IS IN THE DETAILS
From dropouts to derailleur hangers, no gram was overlooked. The same can be said about the approach of our partners at Roval Components. They’ve been working towards the same North Star of ride quality, and the 1248-gram Alpinist wheels and new Alpinist bar/stem combo were tailormade for Aethos and the ride of your life.
| FRAMESET | |
| Frame | Aethos FACT 10R Carbon, Rider First Engineered™, Threaded BB, 12x142mm thru-axle, flat-mount disc |
| Fork | FACT Carbon, 12x100mm thru-axle, flat-mount 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 |
| Cassete | Shimano Ultegra, 12-speed, 11-30t |
| Chain | Shimano XT M8100, 12-speed w/ quick link |
| Crank set | Shimano Ultegra R81000 with 4iiiis Power Meter |
| Chainring | 52/36T |
| Bb set | Shimano Threaded BSA BB |
| BRAKES | |
| Brakes | Shimano Ultegra R8170, hydraulic disc |
| WHEELS & TIRES | |
| Wheelset | Roval Alpinist CL, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, DT for Roval 350 hub, DT Swiss Aerolite spokes,Tubeless Ready |
| Inner Tubes | 700x20-28, 48mm Presta Valve |
| Tires | S-works Turbo 2BR, 700x28mm |
| HANDLEBAR & SADDLE | |
| Handlebar | S-Works Short & Shallow, 123mm Drop, 75mm Reach w/Di2 Hole |
| Stem | Specialized Pro SL, alloy, 4-bolt |
| Tape | Supacaz Super Sticky Kush |
| Saddle | Body Geometry Power Pro, hollow titaniu m rails |
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Differences can arise for various reasons, including but not limited to, changes made by the manufacturer in the design, composition or colors of the products, as well as due to the settings of different monitors, which can change the color or appearance of the items.
Therefore, we encourage customers to consider this information before making a purchase decision, and if there are any questions regarding the specifications or appearance of a product, please do not hesitate to contact our customer service department for further information or clarification.
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