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Introducing Aethos 2

The new Aethos 2 is a lightweight disc road bike weighing just 13.1 pounds for the S-Works spec with SRAM Red, featuring refined geometry for improved comfort and performance updates throughout.

Lukas Brinkerhoff
October 2, 2025
2 min read
Introducing Aethos 2

Introducing Aethos 2

The new Aethos 2 picks up right where the original left off. Coming in at 13.1 pounds for the S-Works spec'd with SRAM Red, this is a lightweight back that rides amazing.

Specialized updated the geo to make the bike more comfortable for more riders.

  • 15 mm taller stack for more comfort and less pressure on your hands

  • 0.5° slacker headtube for smoother control

  • 7mm longer wheelbase for added stability at speed

  • 3 mm lower bottom bracket for a more planted feel in corners

To increase performance and reduce weight, no detail was safe from the Scalpel finding perfection in the details.

  • Updated bottom bracket shell is 6 grams lighter

  • Redesigned flat mount brake is 2 grams ligher

  • They even shaved 9 grams off the saddle clamp

  • And another 2 grams off the UDH

Swing by our St. George location to experience the latest production disc brake road bike ever made!

alpinist II cockpit

  • 270 grams

  • Oval tops reduces hand pressure

  • 4 degrees of flare supports natural wrist angles

  • 28.3 more damping for less fatigue

  • internal cable routing for a clean silhouette

alpinish clx iii wheels

  • 1,131 grams with valves and tape

  • Roval Aero Composite Spokes by Arris save 103.5 grams and are stronger than steel

  • New lightweight hub with DT Swiss 180 internals

  • Hooked rims: optimal tire retention, flat protection, and long-term durability

Breaking the rules (Again)

What's new with Aethos 2

  • Refined geometry for a better fit, supported by decades of Body Geometry fit data.

  • Increased tire clearance up to 35 mm for more comfort, confidence, and versatility.

  • All-new Roval cockpit and wheels that are lighter, smoother, and fully integrated.

What hasn't changed?

  • Still the world's lightest disc road frame at 595 grams.

  • The same sublime, responsive ride with intuitive handling riders fell in love with.

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