The Aethos series pledges an extraordinary trifecta—remarkable lightness, impeccably balanced ride qualities, and unmistakable style—and the Aethos Pro lives up to this commitment. Representing the culmination of countless calculations in the quest for the ultimate ride, the Aethos boasts a Shimano Ultegra Di2 drivetrain for seamless, precise shifts and is equipped with Roval’s Alpinist wheels paired with DT Swiss 350 hubs, ensuring a reliable and straightforward build that delivers mile after mile. Crafted to perfection, the Aethos frame achieves an optimal blend of exceptional ride feel, minimal weight, and eye-catching style. Through innovative adjustments to traditional road shapes, we've enhanced stiffness and balance without compromising weight or durability. Weighing in at a mere 585 grams (S-Works, size 56cm), the Aethos isn't just a new bike; it marks the dawn of a new era. Beyond its featherweight frame, the Aethos excels in providing confidence-inspiring ride characteristics, balancing front and rear stiffness with an unparalleled ride quality. Meticulously designed details, from derailleur hangers to the fork expander plug, prioritize style, weight, and durability. Featuring Roval’s new Alpinist carbon seatpost and wheels, the Aethos goes above and beyond in the pursuit of the perfect ride.
All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.
All bikes collected from our shop, are built, tested and ready to ride. For hassle-free home delivery and bike set-up from a qualified mechanic use our Premier Delivery Service.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.
We use cookies to improve your experience on our website and to show you personalised content. You can read our Cookie and Privacy policy or manage them individually.
Sign In
It looks like you've already got an account!
Sign in now for faster checkout. We'll also make sure this order counts towards your Loyalty Scheme discount.
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.
