Why buy your bike from Sigma Sports?
Don't hesitate to reach out to us. It's our goal to answer all of your questions and offer the best advice from our experts. We’ll be happy to answer any questions you may have. Contact us now or visit us in-store.
Save up to 47% with any one of our 11 Cycle to Work partners, and get the health benefits of a new bike in exchange for tax free salary sacrifice. To find out more about our various partners and how to apply click here.
Choose between Free Bike Delivery - to your home or place of work - or our new Premier Bike Delivery Service £99.99 and have your bike delivered "ready to ride" and set up to your measurements with seatpost and pedals adjusted on arrival by a qualified bike mechanic. Either way, our Customer Care team will be in touch to arrange a delivery date to suit you.
We've partnered with Laka to offer you 30 days free bike Insurance on your new bike purchase over £400. Click here for more info and find out how to claim.
Specialized Aethos Expert Disc Road Bike 2021
Exceptionally light, extremely well balanced, the Specialized Aethos Expert Disc Road Bike reinvents and perfects the ride. It's a bike engineered for pure enjoyment, delivering an unmatched ride quality through altered tube shapes, with a new layup creating stiffness and compliance, with no compromise on durability or weight.
Shimano Ultegra Di2 11-speed components complement this frameset, keeping weight down and ensuring shifting is accurate and smooth. The reliable power of disc brakes inspires the confidence for speed across all Parcours and in all conditions. Finished with DT Swiss R470 disc wheels, Specialized S-Works Turbo tyres and the incredibly light, highly adjustable Roval Alpinist carbon seatpost, this bike is the complete package.
Highlights
- Aethos FACT 10r Carbon frame and fork
- Rider First Engineered™ design
- Shimano Ultegra Di2 R8050 disc 11-speed components
- Roval Alpinist carbon seatpost
- DT R470 Disc wheels and Specialized Turbo 26mm tyres
- 32mm tyre clearance
Technical Specification
| Frame | Specialized Aethos FACT 10r Carbon, Rider First Engineered™, Threaded BB, 12x142mm thru-axle, flat-mount disc |
| Fork | Specialized FACT Carbon, 12x100mm thru-axle, flat-mount disc |
| Bottom Bracket | Shimano BB-R9100 |
| Stem | Specialized Pro SL, alloy, 4-bolt |
| Handlebar | Specialized Expert Shallow Drop, alloy, 125mm drop x 75mm reach |
| Bar Tape | Supacaz Super Sticky Kush |
| Front Brake | Shimano Ultegra R8070, hydraulic disc |
| Rear Brake | Shimano Ultegra R8070, hydraulic disc |
| Brake Levers | Shimano Ultegra R8070 |
| Front Derailleur | Shimano Ultegra Di2 R8050, braze-on |
| Rear Derailleur | Shimano Ultegra Di2 R8050, GS medium cage |
| Shift Levers | Shimano Ultegra R8070, 11-speed |
| Chain | Shimano Ultegra, 11-speed |
| Cassette | Shimano Ultegra R8000, 11-30t, 11-speed |
| Crankset | Shimano Ultegra R8000, HollowTech 2, 52-36t, 11-speed |
| Front Wheel | DT R470 Disc, sealed cartridge hubs, 14g spokes, 24h |
| Rear Wheel | DT R470 Disc, sealed cartridge hubs, 14g spokes, 24h |
| Front Tyre | Specialized S-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x26mm, clincher |
| Rear Tyre | Specialized S-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x26mm, clincher |
| Saddle | Specialized Body Geometry Power Expert, Hollow Titanium Rails |
| Seatpost | Roval Alpinist carbon seatpost |
| Pedals | Available to be purchased separately |
| Manufacturer's claimed weight | 7.14kg size 54cm |
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.
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