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.
The Aethos frame is a remarkable example of a perfect blend of riding experience, weightlessness, and style. It caters to all types of rides, be it steep slopes or long coffee rides. The Aethos achieves this by reimagining the traditional road bike shape and making subtle adjustments that result in improved balance and stiffness, without sacrificing weight or durability. The Aethos is more than just a new bike; it is a new breed of bikes.
A light frame alone is insufficient without the confidence-inspiring riding experience that comes with it. Therefore, the Aethos has been designed to strike a perfect balance between front and rear stiffness, combined with an exceptional ride quality.
Every aspect of the Aethos has been designed with a focus on style, weight, and durability, from the derailleur hangers to the fork expander plug. The Roval's all-new Alpinist carbon seatpost has been incorporated to save weight and improve ride characteristics. The goal was to achieve the perfect ride, and every detail has been meticulously planned and executed to ensure that.
Technical Specification
| FRAME | Aethos FACT 10R 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 |
| SADDLE | Body Geometry Power Sport, steel rails |
| SEATPOST | Roval Alpinist Carbon Seatpost |
| FRONT BRAKE | Shimano 105 R7170, hydraulic disc |
| SEAT BINDER | Specialized Alloy, 30mm |
| REAR BRAKE | Shimano 105 R7170, hydraulic disc |
| SHIFT LEVERS | Shimano 105 Di2 7170 |
| FRONT DERAILLEUR | Shimano 105 Di2 7150, braze on |
| REAR DERAILLEUR | Shimano 105 Di2 7150 |
| CASSETTE | Shimano 105, 12-speed, 11-34t |
| CHAIN | Shimano 105, 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 |
| REAR TIRE | Turbo Pro, 700x28 |
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 Comp 105 Di2 Road Bike Sizing
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