Why buy your bike from Sigma Sports?
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All our bikes are fully built by our Cytech qualified mechanics. To find out more, see the Built, Checked, Tuned and Tested section below to see how we'll deliver your bike.
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Specialized Sigma Exclusive S-Works Aethos Disc Road Bike 2023 - 54cm
Rather than being designed to win races, the Specialized S-Works Aethos Disc Road Bike concentrates on offering a rich blend of ride feel, super low weight and bags of style to ensure every ride is fast, controlled and inspiring. This Sigma exclusive build has had every component selected in-store and it's been built up to bring the finest brands together, creating a beautiful bike.
The frame shuns the harsh lines of aerodynamic kinks and bends and replaces them with traditional round tube sections that ooze class and style. The conventional round tube shape offers the best foundations for increasing stiffness and lowering weight, and when combined with Specialized's finest FACT 12r carbon and a refined layup schedule, a remarkable frame weight of 585 grams (size 56) and superb lateral stiffness is achieved. Moreover, the frame's sophisticated configuration balances this lateral stiffness with vertical compliance across its front and rear, leading to a heightened sensation of balance and poise.
Naturally, the S-Works Aethos scampers eagerly up the most brutal climbs, but this altitude consuming velocity is heightened further by the low rotational weight issued by the Roval Alpinist CLX wheelset and its lightweight full carbon rims. Generous clearance offered by the frameset allows these wheels to be dressed in up to 32mm wide tyres for extra plushness over harsh roads, while a frame geometry borrowed from the brand's Tarmac SL7 race bike positions the rider powerfully over the drivetrain. Supplied with narrower Turbo Cottons in 24mm, a rider and racer favourite, the suppleness and ride feel is unmatched.
A Shimano Dura-Ace R9200 12-speed setup delivers fast, precise gear changes via its semi-wireless electronic format, even when the rider is stomping unapologetically on the pedals. Hydraulic disc brakes deliver confidence-inspiring stopping power and control, even in the wet.
Handlebar, stem and saddle come courtesy of Tune, creating a sleek aesthetic and the performance attributes to match.
Read more about the bikes in our Specialized S-Works Aethos article.
- A superlight steed that blends ultimate ride feel, a super low weight and style
- The frame utilises a sophisticated layup of FACT 12r carbon to deliver exceptional lateral stiffness and a weight of just 585 grams (size 56)
- Traditional round tube shapes are subtly altered to further improve stiffness and balance while markedly improving durability
- The round tube shapes offer a classic aesthetic that oozes style
- A perfect balance of lateral stiffness and vertical compliance from front to rear guarantees exceptional ride quality and control
- Minimalist derailleur hangers and fork expander plug are small details that further shed grams
- A race-inspired geometry positions the rider powerfully over the pedals and affords accurate descending
- Clearance for up to 32mm wide tyres offers the opportunity of extra compliance and grip on poor roads
- Roval Alpinist CLX wheels ensure low rotating mass for lightning acceleration and consistent climbing speeds
- Shimano Dura-Ace R9100 12-speed, semi-wireless electronic gears shift flawlessly amongst a wide range of ratios
- Hydraulic disc brakes stop with power and control in all weather conditions
|Frame||Specialized S-Works Aethos FACT 12r Carbon, Rider First Engineered™, BSA threaded bottom bracket, Electronic cable routing only, 12x142mm thru-axle, flat-mount disc, Campagnolo Winged Wheel top cap|
|Fork||Specialized S-Works FACT Carbon, 12x100mm thru-axle, flat-mount disc|
|Bottom Bracket||BSA30 Coated Ceramic|
|Stem||Tune Geiles Teil 4.0 OV Stem (120mm)|
|Handlebar||Tune Geweih Handlebar (42cm)|
|Bar Tape||Supacaz Super Sticky Kush|
|Front Brake||Shimano Dura-Ace R9270, hydraulic disc / RT-MT900 Ice Tech FREEZA Center Lock Disc Brake Rotor 160mm|
|Rear Brake||Shimano Dura-Ace R9270, hydraulic disc / RT-MT900 Ice Tech FREEZA Center Lock Disc Brake Rotor 160mm|
|Brake Levers||Shimano Dura-Ace R9270, hydraulic|
|Front Derailleur||Shimano Dura-Ace Di2 R9250, braze-on|
|Rear Derailleur||Shimano Dura-Ace Di2 R9250, 12-speed|
|Shift Levers||Shimano Dura-Ace R9270, hydraulic disc|
|Chain||Shimano M9100 XTR and Dura-Ace, 12-speed|
|Cassette||Shimano Dura-Ace R2900, 12-speed, 11-30t|
|Crankset||Cane Creek eeWings All-Road Titanium Cranks (172.5mm) / Praxis Works Buzz Road Chainrings 110BCD (50/34) / Cane Creek eeWings Crank Spider - 2x Sub Compact|
|Front Wheel||Princeton CarbonWorks PEAK 4550 Tune Carbon Disc Wheelset (Shimano/SRAM)|
|Rear Wheel||Princeton CarbonWorks PEAK 4550 Tune Carbon Disc Wheelset (Shimano/SRAM)|
|Front Tyre||Specialized Turbo Cotton, 320 TPI, 700x24mm, clincher|
|Rear Tyre||Specialized Turbo Cotton, 320 TPI, 700x24mm, clincher|
|Saddle||Tune Komm-Vor+ Carbon Saddle with Alcantara cover|
|Seatpost||Roval Alpinist Carbon Seatpost (27.2 x 300mm)|
|Pedals||Available to be purchased separately|
|Accessories||Porteur Stem Mount for GPS Cycling Computer / Tune Wasserträger 2.0 Bottle Cage|
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.
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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