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S-Works Aethos 2
SRAM RED AXS
$18,999.99
0 Reviews
The lightest production bike ever made in pursuit of the perfect ride for more riders.
Color:
Satin Carbon
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S-Works Aethos 2
Break the Rules
S-Works Aethos 2
Break the Rules
At just 595 grams, the S-Works Aethos 2 is the lightest production road frame in the world. But that was never the point. Built by breaking the rules of racing to deliver pure road riding bliss, Aethos 2 is engineered to disappear beneath you. Impossibly 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.
At a Glance
Use
Performance Road Riding
Frameset
595g FACT 12r Frame / FACT 12r Fork
Fit
Performance Endurance
Cockpit & Wheels
Roval Alpinist Integrated Cockpit II and CLX III wheels
Drivetrain
SRAM RED AXS
Weight
5.98kg (56cm)
So Light, It’s a Crime
Complete Builds at Just 5.9kg Thanks to Flow State Design
Aethos began with a moment of human insight: frames “breath” under load. That subtle rhythm revealed how force moved. We fed this into our supercomputer, evolving tubes into sculpted forms. The shape itself delivered stiffness, delivering UCI illegal 5.9kg builds and more responsiveness. The result wasn’t just a more perfect ride, it was a new way of making bikes—Flow State Design.
More Versatility. More Clearance. No Compromise.
No Gram was Safe from Our Scalpel
Aethos 2 clears 35 mm tires with ease. That means smoother, faster rides, more grip, and more roads. That kind of upgrade usually comes at a cost. Not here. We didn’t just create our most optimized layup ever, we re-engineered every detail. No gram was safe from the Specialized Science Club’s obsession.
All-New Roval Alpinist Cockpit and Wheels
All-New Roval Alpinist Cockpit and Wheels
Explore the Lineup
Technical Specifications
Frameset
Frame
S-Works Aethos 2 FACT 12r Carbon, Rider First Engineered™, Threaded BB, Hidden Cable Routing, 12x142mm thru-axle, flat-mount disc
Suspension
Fork
S-Works Aethos 2 FACT 12r Carbon, 12x100mm thru-axle, flat-mount disc
Brakes
Front Brake
SRAM RED E1, hydraulic disc
Rear Brake
SRAM RED E1, hydraulic disc
Drivetrain
Shift Levers
SRAM RED AXS E1, hydraulic disc
Front Derailleur
SRAM RED AXS E1, braze-on
Rear Derailleur
SRAM RED AXS E1
Cassette
SRAM RED XG-1290 E1, 12-speed, 10-33t
Chain
SRAM RED 12-speed
Crankset
SRAM RED AXS Power Meter, 48/35
Bottom Bracket
SRAM DUB BSA 68
Wheels & Tires
Front Tire
S-Works Turbo TLR Race Tire, 700x28c
Front Wheel
Roval Alpinist CLX III, Tubeless, 33mm depth, 26.5 width, and 21mm internal width carbon rim, Roval LF21-F 21H hub with Sinc Ceramic Bearings, Roval by ARRIS Composite Aero Spoke with Ti end fittings
Rear Tire
S-Works Turbo TLR Race Tire, 700x28c
Rear Wheel
Roval Alpinist CLX III, Tubeless, 33mm depth, 26.5 width, and 21mm internal width carbon rim, Roval LF19-R 24H hub with Sinc Ceramic Bearings, Roval by ARRIS Composite Aero Spoke with Ti end fittings
Inner Tubes
700x25-35, 50mm Presta Valve, TPU
Cockpit
Handlebars
Roval Alpinist Cockpit II, Integrated Bar/Stem
Tape
Supacaz Super Sticky Kush
Saddle
S-Works Power with Mirror
SeatPost
Roval Alpinist Carbon Seatpost, light weight clamp
Seat Binder
Specialized Alloy, 30.0mm, titanium bolt
Product Details
Product ID
221563
Weight
Weight
5.98 kg (13 lb, 2.9 oz), tubeless
Weight Size
56
* Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice.
Geometry
| 49 | 52 | 54 | 56 | 58 | 61 | |
|---|---|---|---|---|---|---|
| Crank Length | 165mm | 170mm | 172.5mm | 172.5mm | 175mm | 175mm |
| Handlebar Width | 380mm | 380mm | 400mm | 400mm | 420mm | 420mm |
| Stem Length | 80mm | 90mm | 100mm | 100mm | 110mm | 110mm |
| Saddle Width | 155mm | 155mm | 143mm | 143mm | 143mm | 143mm |
| Seatpost Length | 300mm | 300mm | 360mm | 360mm | 360mm | 360mm |
| Stack | 522mm | 538mm | 559mm | 580mm | 606mm | 627mm |
| Reach | 373mm | 377mm | 384mm | 391mm | 398mm | 404mm |
| Head Tube Length | 114mm | 128mm | 150mm | 169mm | 198mm | 218mm |
| Head Tube Angle | 71.4° | 72.1° | 72.5° | 73° | 73° | 73.5° |
| BB Height | 265.5mm | 265.5mm | 267mm | 267mm | 268.5mm | 268.5mm |
| BB Drop | 76.5mm | 76.5mm | 75mm | 75mm | 73.5mm | 73.5mm |
| Trail | 62mm | 58mm | 55mm | 55mm | 55mm | 52mm |
| Fork Length, Full | 372mm | 372mm | 372mm | 372mm | 372mm | 372mm |
| Fork Rake/Offset | 50mm | 50mm | 50mm | 47mm | 47mm | 47mm |
| Front Center | 581mm | 584mm | 594mm | 599mm | 614mm | 621mm |
| Chainstay Length | 410mm | 410mm | 410mm | 410mm | 410mm | 410mm |
| Wheelbase | 978mm | 981mm | 992mm | 998mm | 1013mm | 1020mm |
| Top Tube Length, Horizontal | 508mm | 526mm | 544mm | 557mm | 572mm | 584mm |
| Bike Standover Height | 719mm | 737mm | 759mm | 779mm | 805mm | 834mm |
| Seat Tube Length | 450mm | 470mm | 490mm | 510mm | 535mm | 570mm |
| Seat Tube Angle | 75.5° | 74.5° | 74° | 74° | 74° | 74° |
Manual Downloads
For safety warnings please refer to the documentation in the Manual Downloads section of this page.
Rider Reviews
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