Specialized Aethos Comp Road Bike
Harnessing 46 years of rider-centric expertise, we present the Aethos—a bike crafted for the sheer love of riding. Balancing superior ride quality, extreme lightweight, and undeniable style, the Aethos Sport model exemplifies this commitment.
The Aethos road bike frame epitomizes the pinnacle of ride experience, combining ultimate feel, lightness, and style. Through a groundbreaking redesign of traditional road shapes, we've achieved remarkable gains in stiffness and balance without compromising weight or durability. With an entirely new layup and perfected processes over decades, the Aethos stands as the lightest frame available (585 grams, S-Works, size 56cm), marking the inception of a new era in biking. A featherweight frame alone is insufficient without confidence-inspiring ride characteristics, driving our meticulous development of the Aethos. Achieving a perfect balance of front and rear stiffness, coupled with exceptional ride quality, we've delved into the nuances of carbon fiber flex and breathing, setting a new standard in sublime rides. Every detail, from derailleur hangers to the fork expander plug, embodies our commitment to style, weight, and durability. Additionally, we've equipped it with Roval’s all-new Alpinist carbon seatpost, further enhancing weight savings and ride attributes. Each element contributes to our relentless pursuit of the perfect ride.
Technical Specification
| Frame | Aethos FACT 9R Carbon, Rider First EngineeredTM, Threaded BB, 12x142mm thru-axle, flat-mount disc |
| Fork | FACT Carbon, 12x100mm thru-axle, flat-mount disc |
| Handlebars | Specialized Shallow Drop, 6061, 70x125mm, 31.8mm clamp |
| Stem | Specialized Pro SL, alloy, 4-bolt |
| Tape | Supacaz Super Sticky Kush |
| Seatpost | Roval Alpinist Carbon Seatpost |
| Seat Binder | Specialized Alloy, 30mm |
| Front Brake | Shimano 105, Hydraulic disc |
| Rear Brake | Shimano 105, Hydraulic disc |
| Shift Levers | Shimano 105, 12 speed Mechanical |
| Front Derailleur | Shimano 105, Braze-on |
| Rear Derailleur | Shimano 105, 12 speed Mechanical |
| Cassette | Shimano 105, 12-speed, 11-34t |
| Chain | Shimano SLX, M7100, 12-speed |
| Crankset | FC-R7100, 105, 12-Speed, Holllowtech 2 |
| Chainrings | 50/34T |
| Bottom Bracket | Shimano Threaded BSA BB |
| Front Wheel | DT R470 Disc |
| Rear Wheel | DT R470 Disc |
| Front Tire | Turbo Pro, 700x28 |
| Saddle | Body Geometry Power Sport, steel rails |
| Rear Tire | Turbo Pro, 700x28 |
| Inner Tubes | Presta Valve Standard, 48mm valves |
| Weight | 7.80kg (17 lb, 3.1 oz) |
| Weight Size 56 | |
Built, Checked, Tuned and Tested
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.
If you require any assistance please contact our Customer Care team.
Specialized Aethos Sport Road Bike Sizing
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Why buy your bike from Sigma Sports?
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