Specialized Aethos Pro Etap Features
The Aethos line promises three things: unprecedented weight savings, perfectly-balanced ride quality, and undeniable style. For the Aethos Pro we threw out the rulebook to create the ride of your life.
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 and wheels, 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, 30.0mm |
| Fork | FACT Carbon, 12x100mm thru-axle, flat-mount disc |
| Front Derailleur | SRAM Force eTAP AXS, braze-on |
| Rear Derailleur | SRAM Force eTAP AXS, 12-speed |
| Cassette | SRAM CS XG 1270, 12-speed, 10-33t |
| Chain | SRAM CN Force 12-speed |
| Crankset | SRAM FC Force DUB, 12-speed |
| Bottom Bracket | SRAM DUB BSA 68 |
| Front Tire | S-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x26mm |
| Rear Tire | S-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x26mm |
| Inner Tubes | Turbo Ultralight, 48mm Presta valve |
| Front Brake | SRAM Force eTAP, hydraulic disc |
| Rear Brake | SRAM Force eTAP, hydraulic disc |
| Stem | Specialized Pro SL, alloy, 4-bolt |
| Handlebars | S-Works Short & Shallow, 125mm Drop, 75mm Reach w/Di2 Hole |
| Saddle | Body Geometry Power Pro, hollow titanium rails |
| Seatpost | Roval Alpinist Carbon Seatpost |
Specialized Aethos Pro Etap
| 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 |
Size Guide: Specialized Aethos Pro Etap
