Specialized Aethos Sport 105 Road Bike
The Specialized Aethos Sport 105 Road Bike is a masterclass in ride quality, lightweight performance, and timeless style. Built for cyclists who demand excellence, this model pairs Shimano 105 mechanical shifting and hydraulic disc brakes with robust DT Swiss R470 Disc wheels, creating a reliable and exciting road companion.
The Aethos frame redefines traditional road bike design, offering unparalleled stiffness and balance while maintaining exceptional lightness and durability. Through decades of refinement, Specialized has developed an innovative carbon layup process that results in one of the lightest frames available, with the S-Works size 56cm weighing just 585 grams. The frame delivers confidence-inspiring handling and a sublime ride feel, setting a new benchmark for performance and comfort, whether on steep climbs, technical descents, or all-day rides.
Every detail, from the derailleur hangers to the fork expander plug, has been meticulously crafted for weight savings, durability, and style. Paired with the lightweight Roval Alpinist carbon seatpost, the Aethos Sport 105 exemplifies the pursuit of the perfect ride.
Technical Specification
| Frame | Aethos FACT 9R Carbon, Rider First Engineered, Threaded BB, 12x142mm thru-axle, flat-mount disc |
| Fork | FACT Carbon, 12x100mm thru-axle, flat-mount disc |
| Front Brake | Shimano 105, Hydraulic disc, 160mm rotor |
| Rear Brake | Shimano 105, Hydraulic disc, 140mm rotor |
| Chainrings | 50/34T |
| Shift Levers | Shimano 105, 12-speed Mechanical |
| Cassette | Shimano 105, 12-speed, 11-34T |
| Crankset | FC-R7100, 105, 12-Speed, Hollowtech 2 |
| Front Derailleur | Shimano 105, Braze-on |
| Rear Derailleur | Shimano 105, 12-speed Mechanical |
| Chain | Shimano SLX, M7100, 12-speed |
| Bottom Bracket | Shimano Threaded BSA BB |
| Inner Tubes | Presta Valve Standard, 48mm valves |
| Front Wheel | DT Swiss R470 rim, 20mm internal width, tubeless-ready, 24h, Specialized full-sealed bearing thru-axle hub, centerlock disc, DT Swiss Champion 14G stainless steel spokes, DT Swiss brass nipples |
| Rear Wheel | DT Swiss R470 rim, 20mm internal width, tubeless-ready, 24h, Specialized full-sealed bearing thru-axle hub, centerlock disc, DT Swiss Champion 14G stainless steel spokes, DT Swiss brass nipples |
| Tyres | Turbo Pro, 700x28 |
| Saddle | Body Geometry Power Sport, steel rails |
| Tape | Supacaz Super Sticky Kush |
| Seatpost | Roval Alpinist Carbon Seatpost |
| Seat Binder | Specialized Alloy, 30mm |
| Stem | Specialized Pro SL, alloy, 4-bolt |
| Handlebars | Specialized Shallow Drop, 6061, 70x125mm, 31.8mm clamp |
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 105 Road Bike Sizing
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Why buy your bike from Sigma Sports?
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