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Specialized
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Specialized

Aethos 2 Frameset

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$3,500.00
Color:Satin Nebula Metallic/Burnt Gold Metallic

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Ultra-light Aethos 2 Frameset delivers class-leading weight with refined endurance road geometry

What Our Gearhead® Experts Are Saying:


"I recommend the Aethos 2 Frameset to riders who want cutting-edge weight savings without race-bike harshness. The 705g FACT 10r frame feels lively under power but stays composed on rough pavement. It’s one of the easiest premium framesets to build thanks to the threaded BB and smart routing."


The Aethos 2 Frameset represents a different philosophy of road bike design—one driven by feel rather than rules. Specialized stripped away unnecessary material and relied on Flow State Design to create tube shapes that deliver stiffness through form, not bulk. The result is one of the lightest production road frames in its class, engineered to feel responsive, smooth, and intuitive on every ride.


This frameset uses FACT 10r carbon and Rider First Engineered construction, ensuring identical ride characteristics across all frame sizes. The Performance Endurance geometry features a slightly taller stack, longer wheelbase, and refined head tube angles, creating stability on descents and comfort on long climbs. Flat-mount disc brakes and thru-axles enhance braking precision and tracking, while internal cable routing keeps the build clean and aerodynamic.


With clearance for up to 35mm tires, the Aethos 2 Frameset expands beyond traditional smooth pavement, opening the door to rougher roads and longer days in the saddle. Designed for riders who value ride quality above all else, it’s the perfect starting point for a lightweight, no-compromise road build.


Heads up - We do our best to keep bike specs and images current, but occasional component changes can happen without warning-and sometimes the photos might not show the exact build you'll receive. If you want to double-check the details, our Gearheads are always here to help.


Details

  • Lightweight road frameset for all-day climbing and endurance rides
  • FACT 10r carbon frame optimized with Flow State Design
  • Rider First Engineered geometry for consistent fit and handling
  • Clearance for up to 35mm road tires for comfort and versatility
  • Threaded bottom bracket for easy service and long-term durability
  • Flat-mount disc brake compatibility for confident stopping power
  • Ideal foundation for high-end custom road bike builds
  • Item #SCQ1X3F
Frame Material
FACT 10r Carbon
Wheel Size
700c
Fork
Aethos 2 FACT 10r Carbon
Head Tube Diameter
1-1/8in to 1-1/2in tapered
Bottom Bracket Type
Threaded (BSA)
Cable Routing
internal
Front Derailleur Mount
braze-on
Brake Type
flat-mount disc
Seatpost
Roval Alpinist Carbo
Seatpost Diameter
27.2mm
Seat Collar
Specialized Alloy, 30mm
Front Axle
12 x 100mm thru-axle
Rear Axle
12 x 142mm thru-axle
Tire Clearance
35mm
Claimed Weight
[56cm] 3lb 0.3oz (1.37kg)
Activity
road cycling
Manufacturer Warranty
2 years
Bike technician building road bike frame at fully equipped indoor cycling repair shop

Build Your Dream Bike

Our Gearhead Experts work with you one-on-one to spec every component from frame to finish, matched to your riding style, terrain, and budget. Submit the form to get started, or call 801-204-4681 to talk now.

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