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SPECIALIZED S-WORKS AETHOS FOUNDERS EDITION DISC ROAD
BIKE 2021
The Specialized S-Works Aethos Disc Road Bike is the culmination of several years of development, the aim being
to create the perfect bike, and this Founders Edition model is just that. Not
focussed on racing, the FACT 12r carbon layup has been altered and the tubes
subtly reshaped to bring the highest levels of stiffness, balance, strength and
stability, all while minimising the material used. A result is a machine that
breaks all the rules, sitting below the UCI weight limit at an incredible 5.9kg
in a size 56, with the frame coming in at a mere 588 grams, and it's set to
take road bikes in a completely new direction. The geometry and fit are exactly
the same as that of the Tarmac SL7, providing an aggressive and racy feel,
while Rider-First Engineered™ design keeps every frame size delivering equal
performance and handling benefits.
This frameset can only be paired with electronic
groupsets and is built up here with Shimano's flagship offering, Dura-Ace Di2,
in a mid-compact configuration with a dual-sided crank-based power meter
included. Shifting is fast, precise and smooth at just a light touch of the
lever, and the addition of the CeramicSpeed bottom bracket and pulley wheels
lowers drivetrain friction markedly. When you need to stop fast, the hydraulic
discs, also of the Shimano Dura-Ace marque, are just as capable in wet and dry
conditions bestowing confidence on any descent or through any sharp corners.
Roval Alpinist CLX carbon clincher wheels are the
lightest from the brand, at just 1248 grams, making them the obvious choice for
a frameset of this calibre. The carbon layup of the 33mm deep rim optimises
strength and durability while keeping weight down, while the AeroFlange hub and
DT Swiss internals enhance the wheels aerodynamically and bring incredibly
smooth-rolling.
This Founder's Edition bike uses the Roval Alpinist
one-piece cockpit, which is another of the brand's lightest components, making
for faster climbing, quicker accelerations and improved ride quality. The traditional
tube shape and bend provides proven performance and cables are all routed
internally, completely in keeping with the sleek aesthetics of the rest of the
bike.
Read more about the bikes in our Specialized S-Works Aethos article.
HIGHLIGHTS
- Founder's
Edition includes one-piece bar/stem Alpinist carbon cockpit
- S-Works
Aethos FACT 12r Carbon frame and fork
- Same
fit and ride geometry as the Tarmac SL7
- Electronic
cable routing specific frame
- CeramicSpeed,
68mm BSA threaded bottom bracket
- Rider-First
Engineered design
- Frame
only claimed weight - 585 grams, size 56cm
- Full
build claimed weight - 5.9kg
- Shimano
Dura-Ace R9170 hydraulic disc and 11-speed gear components
- CeramicSpeed
pulley wheels are added to the rear derailleur
- Dual-sided
power meter
- Roval
Alpinist carbon seatpost and cockpit
- Roval
Alpinist CLX wheels and Specialized Turbo Cotton 26mm tyres
- 32mm
tyre clearance
Frame Specialized
S-Works Aethos FACT 12r Carbon, Rider-First Engineered™, 68mm BSA threaded BB,
electronic cable routing only, 12x142mm thru-axle, flat-mount disc
Fork Specialized
S-Works FACT Carbon, 12x100mm thru-axle, flat-mount disc
Bottom Bracket CeramicSpeed,
68mm BSA, Shimano HollowTech 2 axle compatible
Stem Roval
Alpinist Cockpit, one-piece bar/stem combination, carbon
Handlebar Roval
Alpinist Cockpit, one-piece bar/stem combination, carbon
Bar Tape Supacaz
Super Sticky Kush
Front Brake Shimano
Dura-Ace R9170, hydraulic disc
Rear Brake Shimano
Dura-Ace R9170, hydraulic disc
Brake Levers Shimano
Dura-Ace R9170
Front Derailleur Shimano
Dura-Ace Di2 R9150, braze-on
Rear Derailleur Shimano
Dura-Ace Di2 R9150, 11-speed, CeramicSpeed pulley wheels
Shift Levers Shimano
Dura-Ace Di2 Disc R9170
Chain Shimano
Dura-Ace, 11-speed
Cassette Shimano
Dura-Ace CS-R9100, 11-30t, 11-speed
Crankset Shimano
Dura-Ace R9100, HollowTech 2, 11-speed, dual-sided power meter, 52/36T
Front Wheel Roval
Alpinist CLX, 21mm internal width carbon rim, 33mm depth, Win Tunnel
Engineered, Roval AFD hub, 21h, DT Swiss Aerolite spokes
Rear Wheel Roval
Alpinist CLX, 21mm internal width carbon rim, 33mm depth, Win Tunnel
Engineered, Roval AFD hub, 24h, DT Swiss Aerolite spokes
Front Tyre Specialized
Turbo Cotton - Black Sidewall, 320 TPI, 700x26mm, clincher
Rear Tyre Specialized
Turbo Cotton - Black Sidewall, 320 TPI, 700x26mm, clincher
Saddle Specialized
Body Geometry S-Works Power Arc, carbon fibre rails, carbon fibre base
Seatpost Roval
Alpinist carbon seatpost
Pedals Available to
be purchased separately
Accessories SWAT
integrated cycle computer mount
Manufacturer Claimed Weight 585 grams, frame only, size 56cm / 5.9kg, full bike build