To improve your shopping experience today and in the future, this site uses cookies.
I Accept Cookies
The Specialized Aethos Road Bike is a masterpiece, balancing exceptional ride quality, ultra-lightweight design, and timeless style.
The Specialized Aethos Road Bike is a masterpiece, balancing exceptional ride quality, ultra-lightweight design, and timeless style.
Specialized

2025 Specialized Aethos Sport Shimano 105 Road Bike - Blue Onyx

£3,250.00
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

2025 Specialized Aethos Sport Shimano 105 Road Bike - Blue Onyx

Season:2025

Brand:Specialized

Code:42215685433039

The Specialized Aethos Road Bike: Crafted for the Love of Riding

Imagine channeling 46 years of cycling expertise into a bike built purely for the joy of the ride. The Specialized Aethos Road Bike is a masterpiece, balancing exceptional ride quality, ultra-lightweight design, and timeless style. The Aethos Sport model embodies this vision.

Outfitted with low-maintenance Shimano 105 mechanical shifting and reliable hydraulic disc brakes, paired with durable DT Swiss R470 Disc wheels, the Aethos Sport is your ideal companion for thrilling road adventures.

  • Revolutionary Frame Engineering: The Aethos frame is meticulously designed to combine ultimate ride feel, lightweight construction, and aesthetic appeal. By reimagining the classic road bike shape, Specialized have enhanced stiffness and balance without adding weight or compromising durability. The result is the lightest frame available, just 585g for the S-Works size 56cm.
  • Optimised for Every Ride: Whether you're tackling steep climbs, navigating technical descents, or enjoying long rides, the Aethos delivers. Decades of innovation in carbon fibre technology have allowed us to achieve unprecedented stiffness and balance, ensuring a ride that feels both responsive and smooth.
  • Precision in Every Detail: From the derailleur hangers to the fork expander plug, every component of the Aethos is crafted with an emphasis on style, weight, and durability. The inclusion of the new Roval Alpinist carbon seatpost further reduces weight and enhances the bike's ride quality.
A New Standard in Cycling
  • The Aethos sets a new standard in road biking, combining featherweight engineering with ride characteristics that inspire confidence. Specialized's extensive research into carbon fibre dynamics has led to groundbreaking insights into how forces flow through the frame, resulting in a ride that redefines what's possible on the road.

The Specialized Aethos Road Bike is more than just a bike, it's a new breed of cycling excellence, designed to elevate your riding experience with every pedal stroke.

Technical Information
  • FRAME
    Aethos FACT 9R Carbon, Rider First Engineered™, Threaded BB, 12x142mm thru-axle, flat-mount disc
  • FORK
    FACT Carbon, 12x100mm thru-axle, flat-mount disc
  • HANDLEBARS
    Specialized Shallow Drop, 6061, 70x125mm, 31.8mm clamp
  • STEM
    Specialized Pro SL, alloy, 4-bolt
  • TAPE
    Supacaz Super Sticky Kush
  • SADDLE
    Body Geometry Power Sport, steel rails
  • SEATPOST
    Roval Alpinist Carbon Seatpost
  • SEAT BINDER
    Specialized Alloy, 30mm
  • FRONT BRAKE
    Shimano 105, Hydraulic disc
  • REAR BRAKE
    Shimano 105, Hydraulic disc
  • FRONT DERAILLEUR
    Shimano 105, Braze-on
  • REAR DERAILLEUR
    Shimano 105, 12 speed Mechanical
  • CRANKSET
    FC-R7100, 105, 12-Speed, Holllowtech 2
  • CHAIN
    Shimano SLX, M7100, 12-speed
  • CASSETTE
    Shimano 105, 12-speed, 11-34t
  • BOTTOM BRACKET
    Shimano Threaded BSA BB
  • SHIFT LEVERS
    Shimano 105, 12 speed Mechanical
  • CHAINRINGS
    50/34T
  • FRONT WHEEL
    WH-DT R470 DISC (2025)
  • REAR WHEEL
    WH-DT R470 DISC (2025)
  • FRONT TYRE
    Turbo Pro, 700x28
  • REAR TYRE
    Turbo Pro, 700x28
  • INNER TUBES
    Presta Valve Standard, 48mm valves
  • WEIGHT
    7.76kg (17 lb, 1.7 oz)
  • WEIGHT SIZE
    56cm
As with any product, specification is subject to change without prior notification. You are advised to confirm current specification before buying. Please note that this bike does not come with pedals.
Sizing Information

SIZING

Size in ft5'1" - 5'4"5'4" - 5'7"5'7" - 5'9"5'9" - 5'11"5'11" - 6'2"6'2" - 6'5"
Size in cm155 - 163cm163 - 170cm170- 175cm175 - 180cm180 - 188cm188 - 196cm
Bike Size495254565861

GEOMETRY

Size49cm52cm54cm56cm58cm61cm
BB Drop74mm74mm72mm72mm72mm72mm
BB Height266mm266mm268mm268mm268mm268mm
Bike Standover Height705mm728mm748mm769mm796mm824mm
Chainstay Length410mm410mm410mm410mm410mm410mm
Fork Length, Full369mm369mm369mm369mm369mm369mm
Fork Rake/Offset47mm47mm44mm44mm44mm44mm
Front Centre574mm577mm579mm591mm606mm613mm
Head Tube Angle71.75°72.5°73°73.5°73.5°74°
Head Tube Length109mm120mm137mm157mm184mm204mm
Reach375mm380mm384mm395mm402mm408mm
Seat Tube Angle75.5°74°74°73.5°73.5°73°
Seat Tube Length431mm462mm481mm504mm532mm567mm
Stack514mm527mm544mm565mm591mm612mm
Top Tube Length, Horizontal508mm531mm540mm562mm577mm595mm
Trail63mm58mm58mm55mm55mm52mm
Wheelbase973mm975mm978mm991mm1005mm1012mm
Crank Length165mm170mm172.5mm172.5mm175mm175mm
Handlebar Width380mm400mm420mm420mm440mm440mm
Stem Length80mm90mm100mm100mm110mm110mm
Saddle Width155mm155mm143mm143mm143mm143mm
Seatpost Length300mm300mm360mm360mm360mm360mm
Professional Opinion
Home Road Cycling Bikes Specialized Road Bikes