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30 Day ReturnsWarranty IncludedSelect Click & Collect at checkout and pick up your order at a convenient location
106-108 The Hornet, Chichester, England, United Kingdom
| 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 - 5.00pm |
150 Commercial Road, Totton, Southampton, England, United Kingdom
| Monday | 9am - 5.30pm |
| Tuesday | 9am - 5.30pm |
| Wednesday | 9am - 5.30pm |
| Thursday | 9am - 5.30pm |
| Friday | 9am - 5.30pm |
| Saturday | 9am - 5.30pm |
| Sunday | 10am - 4.00pm |
| Bank Holidays | 10am - 4.00pm |
Auckland House, Walton-on-Thames, England, United Kingdom
| Monday | 8am - 6.00pm |
| Tuesday | 8am - 6.00pm |
| Wednesday | 8am - 6.00pm |
| Thursday | 8am - 6.00pm |
| Friday | 8am - 6.00pm |
| Saturday | 9am - 5.30pm |
| Sunday | 10am - 4.00pm |
| Bank Holidays | 10am - 5.00pm |
With a 705g frame, the 2026 Specialized Aethos 2 Pro Shimano Ultegra Di2 in Gloss Red is the lightest bike in its class. But weight was never the point. Built by breaking racing’s rules to deliver pure road riding bliss, it’s engineered to disappear beneath you: responsive, supple, and sublime. Now with increased tire clearance, refined components, and data-based fit-enhancing geometry, it brings that transcendent ride feel to more riders than ever. Aethos 2 breaks the rules, for the love of the ride.
Use
Performance Road Riding
Frameset
705g FACT 10r Frame / FACT 10r Fork
Fit
Performance Endurance
Cockpit & Wheels
Roval Alpinist Integrated Cockpit II and CL II wheels
Drivetrain
Shimano Ultegra Di2
Weight
6.73kg (56cm)
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 £25 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.
Find Out More About Returns >
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bottom bracket
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Shimano Threaded BSA BB
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brakes
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Shimano Ultegra BR-R8170, hydraulic disc
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brake levers
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Shimano Ultegra Di2 R8170, hydraulic disc
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cassette
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Shimano Ultegra, 12-speed, 11-30t
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chain
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Shimano XT M8100, 12-speed w/ quick link
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crankset
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Shimano Ultegra R8100 with 4iiii Precision 3+ single-sided Power Meter, 52/36t
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fork
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Aethos 2 FACT 10r Carbon, 12x100mm thru-axle, flat-mount disc
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frame
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Aethos 2 FACT 10r Carbon, Rider First Engineered™, Threaded BB, Hidden Cable Routing, 12x142mm thru-axle, flat-mount disc
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grips
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Supacaz Super Sticky Kush
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handlebars
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Roval Alpinist Cockpit II, Integrated Bar/Stem
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material
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Carbon 10r
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rear derailleur
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Shimano Ultegra Di2 R8150, 12-speed
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seatpost
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Roval Alpinist Carbon Seatpost
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tyres
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S-Works Turbo TLR Race Tire, 700x28c
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wheelset
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Roval Alpinist CL II, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, DT for Roval 350 hub, DT Swiss Aerolite spokes, Tubeless Ready
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