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Experience the ultimate ride with the Aethos bike.
Experience the ultimate ride with the Aethos bike.
Specialized

2025 Specialized Aethos Sport Shimano 105 Road Bike In Blue Onyx

£3,250.00
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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
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Hassle free returns

At 99 Bikes our priority is to ensure that you are highly satisfied with your purchase. In the unlikely event that you aren't, we offer a 30 day online return policy* in which you can receive a full refund. Any item including bikes (with the exception of food) can be returned to us for any reason provided it is received by us in an unused and resalable condition in or with its original packaging which must be undamaged. In the event an item is returned to ourselves in an unsuitable condition, we may have to return the item or offer a partial refund. Unless the return is due to a faulty product or an incorrect delivery on our part you will have to cover the cost of the return. If you believe that we should be covering the cost of the return please contact us in advance to discuss the available options.

In line with the customer rights act 2015 if you receive an item that is faulty, of un-satisfactory quality, unusable or that differs from how the product is described you are entitled to return the item for a full refund within 30 days of purchase.

Small Items - Parts & Accessories

Include the returns form and send it to us with the delivery company of your choosing - easy peasy!

Larger Items - Bikes / Bulky Items

If you wish to return bikes or bulky items such as forks or turbo trainers please contact our Returns Department to arrange a special courier collection. Contact us on our email address websales@99bikes.co.uk We can arrange collection for you from your home or work address, using our couriers ( You may be required to cover postages costs )

* Bulky Items Include - Bikes - Wheels/wheelsets - Turbo Trainers - Framesets - Forks - Groupsets - Car racks - Child Seats

Warranty Claims

Please contact us prior to returning so we can ensure the fastest suitable resolution for you: websales@99bikes.co.uk. We also ask that you contact us before having a 3rd party undertake work on an item purchased from 99 Bikess. Any work carried out without 99 Bikes consent will not be eligible for reimbursement and may void future warranty claims for that item.

2025 Specialized Aethos Sport Shimano 105 Road Bike In Blue Onyx

Season:2025

Brand:Specialized

Code:9722561

Experience the ultimate ride with the Aethos bike.

The Aethos is designed to straddle the line between perfect ride quality, extreme lightweight, and undeniable style. The Aethos Sport model is no exception. 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.

By reinventing the traditional road shape found on bikes of the past, subtle alterations have been made to deliver massive gains in stiffness and balance, all without affecting weight or durability. Pair that with an entirely new layup and process 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 the Aethos has been developed to have the perfect balance of front and rear stiffness combined with exceptional ride quality. By studying the flexing and breathing of carbon fiber, groundbreaking findings about how forces flow through frames have been discovered. Just a few pedal strokes and you’ll realize this sublime ride sets a new standard.

Features:

  • Featherweight frame at 585 grams (S-Works, size 56cm).
  • Perfect balance of front and rear stiffness.
  • Exceptional ride quality.
  • Roval's all-new Alpinist carbon seatpost for weight saving and improved ride.
  • Designed with style, weight, and durability in mind.
All UK Mainland Bike Deliveries Over £999 - Free

Bike orders are sent via TNT/FedEx with estimated delivery within 1 working day after quoted dispatch time (For Scottish Highlands, Northern Ireland, Isle of Man and the Channel Islands deliveries please allow an additional 1-4 working days).
Bike orders under £999 will incur a £20 delivery fee

Free Delivery On Orders Over £50.00

When you spend more than £50.00 at 99 Bikes deliveries to a UK mainland address will be free (excludes bikes & large items).

Certain regions and territories of the UK will incur additional charges, details of which can be found on our delivery page.

Click & Collect Orders

Please be aware Click & Collect orders may take some time to fulfil. We advise not to travel to your chosen store until you have been notified that your order is ready for collection.

Spread the cost of your new bike, helmet, safety equipment and accessories paying via instalments being taken directly from your wage. The payments for the Cycle To Work scheme are taken out of your gross wage and your Tax & NI contributions are then worked out based on your new lower gross wage which is how you save money on your new bike and equipment.

At the end of the time period specified with your Cycle To Work scheme you then have the option of buying your bike or to continuing to use it while you work for the company. If you decide to purchase the bike, the balance you owe will be based on a percentage of how much the bike was worth at the time you took out the Cycle To Work scheme.

We know how eager you'll be to jump on your new bike and hit the dirt or tarmac, so we give you everything you need to get you set up quickly. For full instructions on how you're bike will arrive and what you'll need to do, visit our How Our Bikes Are Built page

Easy Set-Up Instructions

Have your brand spanking new bike ready to ride in less than 15 minutes with our easy to follow guide.

Free Multi-Tool

9 in 1 multi-tool to help you set up and maintain your bike.

Free Pedal Spanner

Attach your pedals with ease using our free tool. Please note pedals are not included with all bikes so please check the specification. You can shop our awesome range of pedals HERE

Technical Information
  • Frame
    Aethos FACT 9R Carbon, Rider First Engineered™, Threaded BB, 12x142mm thru-axle, flat-mount disc
  • Suspension Fork
    FC070~72-2, 2021 Project 300 10r Disc
  • Cockpit Handlebars
    PREMETEC 6290R, 6061-T6, double butted, compound radius drop, 31.8mm, reach 75mm, drop 123mm
  • Saddle
    Body Geometry Power Sport, steel rails
  • Stem
    Specialized Pro SL, alloy, 4-bolt
  • Tape
    Supacaz Super Sticky Kush
  • Seatpost
    Roval Alpinist Carbon Seatpost
  • Seat Binder
    Specialized Alloy, 30mm
  • Brakes Rear Brake
    Shimano 105, Hydraulic disc
  • Front Brake
    Shimano 105, Hydraulic disc
  • Drivetrain Shift Levers
    Shimano 105, 12 speed Mechanical
  • Front Derailleur
    Shimano 105, Braze-on
  • Rear Derailleur
    Shimano 105, 12 speed Mechanical
  • Cassette
    Shimano 105, 12-speed, 11-34t
  • Chain
    Shimano SLX, M7100, 12-speed
  • Crankset
    FC-R7100, 105, 12-Speed, Holllowtech 2
  • Chainrings
    50/34T
  • Bottom Bracket
    Shimano Threaded BSA BB
  • Wheels & Tires Front Wheel
    WH-DT R470 DISC (2025)
  • Rear Wheel
    WH-DT R470 DISC (2025)
  • Front Tire
    Turbo Pro, 700x28
  • Rear Tire
    Turbo Pro, 700x28
  • Inner Tubes
    Presta Valve Standard, 48mm valves
  • Accessories Pedals
    Pedal, test ride pedals provided by Specialized
  • Product Details Product ID
    221568
  • Weight
    7.76kg (17 lb, 1.7 oz)
  • Weight Size
    56
Sizing Information

Specialized Bikes Size Guide

Please note the following size guides are a general overview and represent a rough guide to Specialized Bicycles sizing.
Each bike may deviate from these figures, please refer to the specific geometry details or contact us for more precise sizing.


Specialized Mountain Bike Size Guide (including Turbo E-Bikes)

SizeXSSMLXLXXL
Height (cm)147 - 155157 - 168167 - 178166 - 188185 - 193193 - 198


Specialized Road and Gravel Bike Size Guide

Size444950525456586164
Height (cm)142 - 155155 - 163157 - 162162 - 170170 - 175175 - 180180 - 188187 - 196195 - 206


Specialized Hybrid Bike Size Guide

SizeXXSXSSMLXLXXL
Height (cm)142 - 150149 - 157155 - 165165 - 175175 - 189188 - 193193 - 198
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