2025 Specialized Aethos Pro - Shimano Ultegra Di2

By Specialized
$10,000.00 CAD

This item is in stock at the warehouse, and will require additional time to process before shipping. Learn more

97225-1152
Color: Satin Carbon / Red Pearl / Black
Size
View details

The Aethos line promises three things—exceptional light weight, perfectly-balanced ride characteristics, and undeniable style—and this Aethos pro is no exception. Aethos: Billions of calculations in the pursuit of one thing—the perfect ride.

Spec’d with Shimano's Ultegra Di2 that delivers clean, crisp shifts and Roval’s Alpinist wheels mated to DT Swiss 350 hubs and your left with a no-fuss build that delivers, mile after mile.
  • 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
Frameset
Frame
Aethos FACT 10r Carbon, Rider First Engineered™, Threaded BB, 12x142mm thru-axle, flat-mount disc
Suspension
Fork
FACT Carbon, 12x100mm thru-axle, flat-mount disc
Brakes
Front Brake
Shimano Ultegra R8170, hydraulic disc, 160mm rotor
Rear Brake
Shimano Ultegra R8170, hydraulic disc, 140mm rotor
Drivetrain
Chainrings
52/36T
Cassette
Shimano Ultegra, 12-speed, 11-30t
Bottom Bracket
Shimano Threaded BSA BB
Rear Derailleur
Shimano Ultegra Di2 R8150, 12-speed
Crankset
Shimano Ultegra R8100 with 4iiiis Precision 3+ Power Meter
Front Derailleur
Shimano Ultegra Di2 R8150, braze-on
Shift Levers
Shimano Ultegra Di2 R8170, hydraulic disc
Chain
Shimano M8100, 12-speed w/ quick link
Wheels & tires
Inner Tubes
700x20-28, 48mm Presta Valve
Front Wheel
Roval Alpinist CL II, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, DT for Roval 350 hub, DT Swiss Aerolite spokes, Tubeless Ready
Rear Wheel
Roval Alpinist CL II, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, DT for Roval 350 hub, DT Swiss Aerolite spokes, Tubeless Ready
Front Tire
S-works Turbo 2BR, 700x28mm
Rear Tire
S-works Turbo 2BR, 700x28mm
Cockpit
Saddle
Body Geometry Power Pro with Mirror, hollow titanium rails
SeatPost
Roval Alpinist Carbon Seatpost
Handlebars
S-Works Short & Shallow, 125mm Drop, 75mm Reach w/Di2 Hole
Seat Binder
Specialized Alloy, 30mm
Stem
Specialized Pro SL, alloy, 4-bolt
Tape
Supacaz Super Sticky Kush
Product details
Product ID
221544
Weight
Weight Size
56
Weight
6.78kg (14 lb, 15.2 oz)
49 52 54 56 58 61
Crank Length 165 170 172.5 172.5 175 175
Handlebar Width 380 400 420 420 440 440
Stem Length 80 90 100 100 110 110
Saddle Width 155 155 143 143 143 143
Seatpost Length 300 300 360 360 360 360
Stack 514 527 544 565 591 612
Reach 375 380 384 395 402 408
Head Tube Length 109 120 137 157 184 204
Head Tube Angle 71.75 72.5 73 73.5 73.5 74
BB Height 266 266 268 268 268 268
BB Drop 74 74 72 72 72 72
Trail 58 55 55 52 63 58
Fork Length, Full 369 369 369 369 369 369
Fork Rake/Offset 47 47 44 44 44 44
Front Center 574 577 579 591 606 613
Chainstay Length 410 410 410 410 410 410
Wheelbase 973 975 978 991 1005 1012
Top Tube Length, Horizontal 508 531 540 562 577 595
Bike Standover Height 705 728 748 769 796 824
Seat Tube Length 431 462 481 504 532 567
Seat Tube Angle 75.5 74 74 73.5 73.5 73
Product Variants SKU/UPC
  • 2025 Specialized Aethos Pro - Shimano Ultegra Di2: Satin Carbon / Red Pearl / Black / 49: SKU: 97225-1149 - UPC: 196625189951
  • 2025 Specialized Aethos Pro - Shimano Ultegra Di2: Satin Carbon / Red Pearl / Black / 52: SKU: 97225-1152 - UPC: 196625190056
  • 2025 Specialized Aethos Pro - Shimano Ultegra Di2: Satin Carbon / Red Pearl / Black / 54: SKU: 97225-1154 - UPC: 196625190247
  • 2025 Specialized Aethos Pro - Shimano Ultegra Di2: Satin Carbon / Red Pearl / Black / 56: SKU: 97225-1156 - UPC: 196625190094
  • 2025 Specialized Aethos Pro - Shimano Ultegra Di2: Satin Carbon / Red Pearl / Black / 58: SKU: 97225-1158 - UPC: 196625190001
  • 2025 Specialized Aethos Pro - Shimano Ultegra Di2: Satin Carbon / Red Pearl / Black / 61: SKU: 97225-1161 - UPC: 196625190100