Specialized Aethos Pro - Shimano Ultegra Di2

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The Specialized Aethos Pro: A Bike Engineered for Performance Perfection

For dedicated cyclists seeking the ultimate blend of speed, handling, and all-day comfort, the Specialized Aethos Pro with Shimano Ultegra Di2 represents the pinnacle of advanced bike engineering. By integrating innovative technologies with intuitive design features, Specialized has created a high-performance road bike that delivers an unrivaled riding experience.

An Impressively Light Yet Stiff Carbon Frame

At the heart of the Aethos Pro lies an impressively lightweight FACT 10R carbon fiber frame, tipping the scales at a mere 750g for a size 56cm. Don't let the featherweight design fool you - this meticulously engineered frame provides benchmark stiffness for optimal power transfer and direct handling. The radically oversized downtube and stiff chainstays channel your pedaling force straight to the road. 

Specialized's Rider-First EngineeredTM technology utilizes size-specific carbon layup and tube shaping to ensure uniform stiffness across all frame sizes. Integrated cable routing and dropped seatstays enhance the bike's aerodynamic performance. 

Shimano Ultegra Di2: Lightning-Fast Electronic Shifting

The Aethos Pro comes fully loaded with Shimano's Ultegra 8050 Di2 electronic shifting system. This innovative technology delivers lightning-fast, accurate shifting with the simple push of a button. 

Optimized rear derailleur design and advances in electronic firmware allow the Di2 system to shift up or down the entire cassette in one swift motion. Shift even under full power without losing traction.

Ultegra hydraulic disc brakes provide exceptional stopping power and modulation in all riding conditions. 160mm Ice-Tech rotors dissipate heat to prevent fade on long descents.

Wheels and Tires: Built for Speed and Stability

The Aethos rolls on premium Roval Alpinist CLX carbon fiber wheelset with 21mm internal rim width for optimal tire support and handling. Weighing only 1375 grams, these wheels excel at acceleration. The tubeless-ready hookless rims make it easy to mount tires and maintain pressure over time. 

The bike comes equipped with Specialized Turbo Pro 700x28c tires, featuring a dual-compound tread, Velocite puncture protection layer, and lightweight 320 TPI casing. Together, these components offer the ideal blend of low rolling resistance, confident cornering grip, and a supple ride.

Cockpit and Saddle: Dialed for All-Day Comfort

The ergonomic build of the Aethos Pro caters to all-day riding comfort. The short-reach handlebar provides a slightly more upright position to reduce strain on your lower back and shoulders. The Body Geometry Power Pro saddle features dense padding and ample support exactly where you need it. 

Optimized for Snappy Handling and Enduring Comfort

Riders will immediately notice how the Aethos Pro comes alive at the slightest input. The sharp steering response makes navigating twisty descents a thrill. The bike remains stable and composed when sprinting out of the saddle or bombing through high-speed corners. 

While the Aethos delivers race-worthy aggression when you want it, the carefully engineered compliance built into the frame isolates you from road chatter and vibration. You'll stay comfortable and energized even on ultra-long rides. 

This bike blends cutting-edge performance features with intuitive design in a package that advanced cyclists will appreciate. If you demand blistering speed paired with all-day comfort, the Specialized Aethos Pro deserves a spot at the top of your wish list. Discover the brilliant riding experience this Shimano Di2-equipped carbon rocket has to offer.