2023 Specialized Aethos Expert Features
Aethos: Billions of calculations in the pursuit of one thing—the perfect ride. It’s more than just a motto, it’s a philosophy. The Aethos has been designed to straddle the line between a perfected ride quality, extreme light weight, and undeniable style, and this Expert model is no exception.
With wireless SRAM Rival eTap AXS electronic shifting and hydraulic disc brakes paired with bomb-proof Roval C38 Disc carbon wheels, you have the perfect steed to get you out on the road.
At a Glance
- The Aethos frame has been designed with the perfect combination of ultimate ride feel, light weight, and style—from accelerating up steep pitches and descending technical descents, to all-day saddle comfort on even the longest coffee rides, the Aethos hits the mark. But how, you ask? By reinventing the traditional road shape found on bikes of the past, we’ve subtly altered these shapes to deliver massive gains in stiffness and balance, all without affecting weight or durability. Pair that with an entirely new layup and process that we’ve perfected over multiple decades and you have the lightest frame out there (585 grams, S-Works, size 56cm). The Aethos is more than just a new bike, it’s the first of a new breed.
- A featherweight frame is useless without confidence-inspiring ride characteristics, which is why we’ve developed the Aethos to have the perfect balance of front and rear stiffness combined with exceptional ride quality. By studying the flexing and breathing of carbon fiber, we were able to discover groundbreaking findings about how forces flow through frames. Just a few pedal strokes and you’ll realize this sublime ride sets a new standard.
- Every detail, from the derailleur hangers to the fork expander plug have been designed with style, weight, and durability in mind. We’ve also spec’d it with Roval’s all-new Alpinist carbon seatpost, further saving weight and improving ride characteristics. Everything in pursuit for the perfect ride.
Component Specifications
| Frame | Aethos FACT 10R Carbon, Rider First Engineered™, Threaded BB, 12x142mm thru-axle, flat-mount disc |
| Seat Binder | Specialized Alloy, 30mm |
| Fork | FACT Carbon, 12x100mm thru-axle, flat-mount disc |
| Shift Levers | SRAM Rival eTap AXS |
| Front Derailleur | SRAM Rival eTAP AXS, braze-on |
| Rear Derailleur | SRAM Rival eTap AXS, 12-speed |
| Cassette | SRAM Rival, 12-speed, 10-36t |
| Chain | SRAM Rival 12-speed |
| Crankset | SRAM Rival AXS Power Meter |
| Chain Rings | 48/35T |
| Bottom Bracket | SRAM DUB BSA 68 |
| Front Tire | S-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x28mm |
| Rear Tire | S-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x28mm |
| Inner Tubes | 700x20-28, 48mm Presta Valve |
| Front Brake | SRAM Rival eTAP AXS, hydraulic disc |
| Rear Brake | SRAM Rival eTAP AXS, hydraulic disc |
| Stem | Specialized Pro SL, alloy, 4-bolt |
| Handlebars | Specialized Expert Shallow Drop, alloy, 125mm drop x 75mm reach |
| Saddle | Body Geometry Power Expert |
| Seatpost | Roval Alpinist Carbon Seatpost |
2023 Specialized Aethos Expert
| Bike/Frame Size | 49 | 52 | 54 | 56 | 58 | 61 |
|---|---|---|---|---|---|---|
| Stack | 514 mm | 527 mm | 544 mm | 565 mm | 591 mm | 612 mm |
| Reach | 375 mm | 380 mm | 384 mm | 395 mm | 402 mm | 408 mm |
| Chainstay Length | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm |
| Wheelbase | 973 mm | 975 mm | 978 mm | 991 mm | 1005 mm | 1012 mm |
| Top Tube Length, Horizontal | 508 mm | 531 mm | 540 mm | 562 mm | 577 mm | 595 mm |
| Bike Standover Height | 705 mm | 728 mm | 748 mm | 769 mm | 796 mm | 824 mm |
| Seat Tube Length | 431 mm | 462 mm | 481 mm | 504 mm | 532 mm | 567 mm |
| Seat Tube Angle | 75.5° | 74° | 74° | 73.5° | 73.5° | 73° |
| Head Tube Length | 109 mm | 120 mm | 137 mm | 157 mm | 184 mm | 204 mm |
| Head Tube Angle | 71.75° | 72.5° | 73° | 73.5° | 73.5° | 74° |
| BB Height | 266 mm | 266 mm | 268 mm | 268 mm | 268 mm | 268 mm |
| BB Drop | 74 mm | 74 mm | 72 mm | 72 mm | 72 mm | 72 mm |
| Trail | 63 mm | 58 mm | 58 mm | 55 mm | 55 mm | 52 mm |
| Fork Length, Full | 369 mm | 369 mm | 369 mm | 369 mm | 369 mm | 369 mm |
| Fork Rake/Offset | 47 mm | 47 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Front Center | 574 mm | 577 mm | 579 mm | 591 mm | 606 mm | 613 mm |