BICI SPECIALIZED SW ATHEOS SRAM RED AXS 2025
Make no mistake, we’re all about racing—it’s part of our DNA—but sometimes you pedal simply for the joy of riding. This is the spirit of the Aethos. We haven’t compromised on performance, and the Aethos is the lightest bike in its class, yet no compromises on style. Aethos, countless calculations for one goal—a perfect ride. If you pair the world’s lightest frame with the SRAM RED AXS groupset with power meter—the lightest electronic group—and ultralight Roval Alpinist CLX II wheels, your pedal stroke will be perfectly balanced, leaving nothing to chance on the performance front.
- The S-Works Aethos frame was designed to create the perfect balance of ride quality, lightness, and style—able to accelerate on steep climbs, descend the most technical descents, and remain comfortable on long Sunday rides. But you may wonder, how did we do it? We reinvented the traditional shape of past race bikes, altering it slightly to optimize stiffness and balance, without compromising weight or strength. With a completely new layup, perfected over decades, you get the lightest frame on the market (585 g for the S-Works frame size 56). The Aethos is more than a new bike—it’s the beginning of a new generation.
- A super-light frame is useless if the riding characteristics don’t inspire confidence. That’s why for the Aethos we sought the perfect mix of stiffness on the front and rear relative to ride quality. By studying the flexibility and every tiny detail of carbon fibers, we learned a lot about how forces traverse the frame. It will take only a few pedal strokes to realize that the Aethos sets a new standard of riding.
- Every detail, from the derailleur hanger to the expander on the headset, was designed with style, weight, and strength in mind. We also specified the Alpinist carbon seatpost to trim further weight and optimize ride characteristics—everything for the perfect handling.
Specifications
Cockpit
- Saddle
- S-Works Power with Mirror
- Handlebar Tape
- Supacaz Super Sticky Kush
Transmission
- Chain
- NEW SRAM RED 12-speed
- Cassette
- NEW SRAM RED XG-1290, 12-speed, 10-33t
- Bottom Bracket
- SRAM DUB BSA 68
- Shift/Brake Levers
- NEW SRAM RED AXS, 12-speed
- Front Derailleur
- NEW SRAM RED AXS, braze-on
- Crankset
- NEW SRAM RED AXS Power Meter
- Rear Derailleur
- NEW SRAM RED AXS, 12-speed
- Gears
- 48/35
Frame
- Frame
- S-Works Aethos FACT 12r Carbon, Rider First Engineered™, Threaded BB, Electronic cable routing only, 12x142mm thru-axle, flat-mount disc
Suspension
- Fork
- S-Works FACT Carbon, 12x100mm thru-axle, flat-mount disc
Brakes
- Front Brake
- NEW SRAM RED AXS, hydraulic disc
- Rear Brake
- NEW SRAM RED AXS, hydraulic disc
Wheels & Tyres
- Tubing
- 700x20-28, 48mm Presta Valve
- Front Wheel
- Roval Alpinist CLX, Tubeless, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, Roval AFD hub, 21h, DT Swiss Aerolite spokes
- Rear Wheel
- Roval Alpinist CLX, Tubeless, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, Roval AFD hub, 24h, DT Swiss Aerolite spokes
- Front Tire
- S-works Turbo 2BR, 700x28mm
- Rear Tire
- S-works Turbo 2BR, 700x28mm
Cockpit
- Seatpost
- Roval Alpinist Carbon Seatpost
- Handlebar Clamp/Stem
- Roval Alpinist, alloy, titanium bolts, 6-degree rise
- Handlebar Curve
- S-Works Short & Shallow, 125mm Drop, 75mm Reach w/Di2 Hole
- Saddle Collar
- Specialized Alloy, 30.0mm, titanium bolt
Identification
- Identification
- 221535
Weight
- Weight Measure
- 56
- Weight
- 6.34 kg (13 lb, 15.6 oz)
BICI SPECIALIZED SW ATHEOS SRAM RED AXS 2025
Make no mistake, we’re all about racing—it’s part of our DNA—but sometimes you pedal simply for the joy of riding. This is the spirit of the Aethos. We haven’t compromised on performance, and the Aethos is the lightest bike in its class, yet no compromises on style. Aethos, countless calculations for one goal—a perfect ride. If you pair the world’s lightest frame with the SRAM RED AXS groupset with power meter—the lightest electronic group—and ultralight Roval Alpinist CLX II wheels, your pedal stroke will be perfectly balanced, leaving nothing to chance on the performance front.
- The S-Works Aethos frame was designed to create the perfect balance of ride quality, lightness, and style—able to accelerate on steep climbs, descend the most technical descents, and remain comfortable on long Sunday rides. But you may wonder, how did we do it? We reinvented the traditional shape of past race bikes, altering it slightly to optimize stiffness and balance, without compromising weight or strength. With a completely new layup, perfected over decades, you get the lightest frame on the market (585 g for the S-Works frame size 56). The Aethos is more than a new bike—it’s the beginning of a new generation.
- A super-light frame is useless if the riding characteristics don’t inspire confidence. That’s why for the Aethos we sought the perfect mix of stiffness on the front and rear relative to ride quality. By studying the flexibility and every tiny detail of carbon fibers, we learned a lot about how forces traverse the frame. It will take only a few pedal strokes to realize that the Aethos sets a new standard of riding.
- Every detail, from the derailleur hanger to the expander on the headset, was designed with style, weight, and strength in mind. We also specified the Alpinist carbon seatpost to trim further weight and optimize ride characteristics—everything for the perfect handling.
Specifications
Cockpit
- Saddle
- S-Works Power with Mirror
- Handlebar Tape
- Supacaz Super Sticky Kush
Transmission
- Chain
- NEW SRAM RED 12-speed
- Cassette
- NEW SRAM RED XG-1290, 12-speed, 10-33t
- Bottom Bracket
- SRAM DUB BSA 68
- Shift/Brake Levers
- NEW SRAM RED AXS, 12-speed
- Front Derailleur
- NEW SRAM RED AXS, braze-on
- Crankset
- NEW SRAM RED AXS Power Meter
- Rear Derailleur
- NEW SRAM RED AXS, 12-speed
- Gears
- 48/35
Frame
- Frame
- S-Works Aethos FACT 12r Carbon, Rider First Engineered™, Threaded BB, Electronic cable routing only, 12x142mm thru-axle, flat-mount disc
Suspension
- Fork
- S-Works FACT Carbon, 12x100mm thru-axle, flat-mount disc
Brakes
- Front Brake
- NEW SRAM RED AXS, hydraulic disc
- Rear Brake
- NEW SRAM RED AXS, hydraulic disc
Wheels & Tyres
- Tubing
- 700x20-28, 48mm Presta Valve
- Front Wheel
- Roval Alpinist CLX, Tubeless, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, Roval AFD hub, 21h, DT Swiss Aerolite spokes
- Rear Wheel
- Roval Alpinist CLX, Tubeless, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, Roval AFD hub, 24h, DT Swiss Aerolite spokes
- Front Tire
- S-works Turbo 2BR, 700x28mm
- Rear Tire
- S-works Turbo 2BR, 700x28mm
Cockpit
- Seatpost
- Roval Alpinist Carbon Seatpost
- Handlebar Clamp/Stem
- Roval Alpinist, alloy, titanium bolts, 6-degree rise
- Handlebar Curve
- S-Works Short & Shallow, 125mm Drop, 75mm Reach w/Di2 Hole
- Saddle Collar
- Specialized Alloy, 30.0mm, titanium bolt
Identification
- Identification
- 221535
Weight
- Weight Measure
- 56
- Weight
- 6.34 kg (13 lb, 15.6 oz)
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