Monday | 9.00am - 5.30pm |
Tuesday | 9.00am - 5.30pm |
Wednesday | 9.00am - 5.30pm |
Thursday | 9.00am - 5.30pm |
Friday | 9.00am - 5.30pm |
Saturday | 9.00am - 5.30pm |
Sunday | 10.00am - 4.00pm |
Bank Holidays | 10.00am - 4.00pm |

2024 Specialized Aethos Comp 105 Di2 Carbon Road Bike in Pine Green

What if we used every ounce of experience we’ve gained serving riders over the past 46 years and built a bike made simply for the love of riding? The Aethos is designed to straddle the line between perfect ride quality, extreme lightweight, and undeniable style. The Aethos Comp model is no exception.
With low-maintenance, Shimano 105 Di2 electronic shifting and hydraulic disc brakes paired with bomb-proof DT Swiss R470 Disc wheels, you have the perfect steed to excite you out on the road.
Key Features:
- The Aethos frame has been designed with the perfect combination of ultimate ride feel, light weight, and style—from accelerating up steep pitches and descending technical descents, to all-day saddle comfort on even the longest coffee rides, the Aethos hits the mark. But how, you ask? By reinventing the traditional road shape found on bikes of the past, we’ve subtly altered these shapes to deliver massive gains in stiffness and balance, all without affecting weight or durability. Pair that with an entirely new layup and process that we’ve perfected over multiple decades and you have the lightest frame out there (585 grams, S-Works, size 56cm). The Aethos is more than just a new bike, it’s the first of a new breed.
- A featherweight frame is useless without confidence-inspiring ride characteristics, which is why we’ve developed the Aethos to have the perfect balance of front and rear stiffness combined with exceptional ride quality. By studying the flexing and breathing of carbon fiber, we were able to discover groundbreaking findings about how forces flow through frames. Just a few pedal strokes and you’ll realize this sublime ride sets a new standard.
- Every detail, from the derailleur hangers to the fork expander plug have been designed with style, weight, and durability in mind. We’ve also spec’d it with Roval’s all-new Alpinist carbon seatpost, further saving weight and improving ride characteristics. Everything in pursuit for the perfect ride.
All UK Mainland Bike Deliveries Over £999 - Free Bike orders are sent via TNT/FedEx with estimated delivery within 1 working day after quoted dispatch time (For Scottish Highlands, Northern Ireland, Isle of Man and the Channel Islands deliveries please allow an additional 1-4 working days).Bike orders under £999 will incur a £20 delivery fee.
Free Delivery On Orders Over £50.00 - When you spend more than £50.00 at 99 Bikes deliveries to a UK mainland address will be free (excludes bikes & large items).Certain regions and territories of the UK will incur additional charges, details of which can be found on our delivery page.
Click & Collect Orders -Please be aware Click & Collect orders may take some time to fulfil. We advise not to travel to your chosen store until you have been notified that your order is ready for collection.
At 99 Bikes our priority is to ensure that you are highly satisfied with your purchase. In the unlikely event that you aren't, we offer a 30 day online return policy* in which you can receive a full refund. Any item including bikes (with the exception of food) can be returned to us for any reason provided it is received by us in an unused and resalable condition in or with its original packaging which must be undamaged.
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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
Saddle: Body Geometry Power Sport, steel rails
SeatPost: Roval Alpinist Carbon Seatpost
Seat Binder: Shimano 105 R7170, hydraulic disc
Stem: Specialized Pro SL, alloy, 4-bolt
Handlebars: Specialized Shallow Drop, 6061, 70x125mm, 31.8mm clamp
Tape: Roubaix S-Wrap
Front Brake: Shimano 105, Hydraulic disc
Rear Brake: Shimano 105 R7170, hydraulic disc
Chainrings: 50/34T
Shift Levers: Shimano 105 Di2 7170
Cassette: Shimano 105, 12-speed, 11-34t
Crankset: FC-R7100, 105, 12-Speed, Holllowtech 2
Rear Derailleur: Shimano 105 Di2 7150
Front Derailleur: Shimano 105 Di2 7150, braze on
Chain: Shimano SLX M7100, 12-speed w/ quick link
Bottom Bracket: Shimano Threaded BSA BB
Front Wheel: DT R470 Disc
Rear Wheel: DT R470 Disc
Inner Tubes: Presta Valve Standard, 48mm valves
Front Tire: Turbo Pro, 700x28
Rear Tire: Turbo Pro, 700x28
Weight Size: 56
Weight: 7.5 kg (16 lb, 8.6 oz)