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Description
Introducing the Aethos line: Where Exceptional Light Weight, Perfectly Balanced Ride Characteristics, and Undeniable Style Converge
The Aethos frame offers the ultimate ride feel, light weight, and style, making it perfect for steep climbs, technical descents, and all-day comfort. Through innovative design, we've enhanced stiffness and balance without compromising weight or durability, resulting in the lightest frame on the market (585 grams, S-Works, size 56cm).
Confidence-inspiring ride characteristics define the Aethos, striking the perfect balance between front and rear stiffness for an exceptional ride quality. Our in-depth study of carbon fiber flexing and breathing has led to groundbreaking insights, setting a new standard in sublime riding experiences.
Every detail of the Aethos, from derailleur hangers to fork expander plugs, is meticulously crafted with a focus on style, weight, and durability. It's not just a new bike—it's the first of a new breed, redefining the pursuit of the perfect ride.
Frame | Aethos FACT 10r Carbon, Rider First EngineeredTM, Threaded BB, 12x142mm thru-axle, flat-mount disc |
Fork | FACT Carbon, 12x100mm thru-axle, flat-mount disc |
Seatpost | Roval Alpinist Carbon Seatpost |
Seat Binder | Specialized Alloy, 30.0mm, titanium bolt |
Weight | 1.34kg (2 lb, 15.3 oz) |
Weight Size 56 |
Size Guide
Delivery & Returns
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Important Update for Our US Customers
We regret to inform you that due to ongoing challenges related to current US tariffs, shopping on Sigma Sports is temporarily unavailable for customers based in the United States.
We understand how disappointing this may be and sincerely apologize for any inconvenience caused. Please rest assured that we are actively exploring solutions to resume service and find the best way to support our US community.
We appreciate your patience and understanding during this time, and we look forward to welcoming you back as soon as possible.
If you require any further assistance, please reach out to the customer services team
— The Sigma Sports Team