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The Aethos line promises three things: exceptional light weight, perfectly-balanced ride characteristics, and undeniable style.
The Aethos line promises three things: exceptional light weight, perfectly-balanced ride characteristics, and undeniable style.
Specialized

Specialized Aethos Pro Ultegra Di2 Carbon Road Bike 2025

£6,499.00
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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
Earn Rewards
When you purchase this item, you will earn of rewards points to spend on your next purchase from us. You can spend your Rewards balance in-store & online.

Hassle free returns

Your statutory rights are not affected by our Returns Policy. To the extent that any provision in our Returns Policy conflicts with your statutory rights, your statutory rights will prevail and the particular offending provision in our Returns Policy will be deemed inapplicable.


Returns and refunds

If you are unhappy with your item, please let us know. Our Returns Policy gives you 30 days to return or exchange an item bought with a valid receipt. If 30 days have gone by since your purchase, we cannot offer you a refund or exchange.To be eligible for a refund or exchange, goods must be returned in a re-saleable condition. That means your item must be unused and in the same condition that you received it. The item must be in the original packaging and returned with any accessories, labels and “free gifts” or bonus items.

To complete your refund or exchange, we require a receipt or proof of purchase.

Under the Consumer Rights Act of 2015 you have an early right to reject goods that are unsatisfactory quality, unfit for purpose or not as described, and get a full refund.

But this right is limited to 30 days from the date you took ownership of the goods (this could be the date of purchase or the date the goods were delivered to you - whichever is later).

After the initial 30 days, you can't demand a full refund in the first instance, but you still have the right to a repair or replacement.

How to return your item(s):

  1. Put your unused, labelled item for return back in its original packaging.
  2. Fill in a Returns Form and include this with the item you are returning in a parcel.
  3. Send the parcel to the following address:

J's Cycles

Unit A Kirkgate Commercial Centre

Chantry Bridge

Wakefield

WF1 5DL


We will be in touch if there are any issues or when your return has been processed.

Refunds (if applicable)

Once your returned item is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund. If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 calendar days. If you paid for standard delivery of the goods, the cost of standard delivery will also be refunded.

There are certain situations where only partial refunds are granted (if applicable):

- Any item not in its original condition, which is damaged or missing parts for reasons not due to our error

- Any item that is returned more than 30 days after delivery.


Late or missing refunds (if applicable)

If you haven’t received a refund yet, first check your bank account again.

Then contact your credit card company, it may take some time before your refund is officially posted.

Next contact your bank. There is often some processing time before a refund is posted.

If you’ve done all of this and you still have not received your refund yet, please contact us at orders@jscycleshack.com

Returns Shipping

If the item is being returned as a result of our error (damaged, defective, wrong item sent etc), we will refund Royal Mail First Class or Standard Parcel postage costs.

If the item is being returned as a result of a change of mind, purchased the wrong size, item is not suitable, etc… the original cost of the outbound postage will be refunded by us, however the consumer is liable for all return costs incurred.

If you are shipping an item over £50, you should consider using a trackable shipping service or purchasing shipping insurance as we cannot guarantee that we will receive your returned item.


International Refunds

All refunds are processed in GBP (£). J’s Cycle Shack will not refund any charges made by your bank for currency conversions or any customs charges incurred throughout the shipping/returns process. J’s Cycle Shack will not refund differences caused by fluctuations in exchange rates. Shipping costs will be refunded as outlined in the paragraph above.


Guidelines For The Best Experience

Each returned item should be in it’s original packaging with the manufacturer’s labels attached. Please do not tape or attach labels directly to the retail packaging.

Retail store purchases should be returned to the original place of purchase. If this is not possible then follow our website returns policy and include proof of purchase.

We reserve the right to reject the return of goods which are not returned in accordance with our Returns Policy and we may request that you pay for the shipping of such goods back to you. Our returns policy does not affect your statutory rights.

A deduction will be made if the value of the goods has been reduced as a result of you handling the goods more than was necessary. The extent to which a customer can handle the goods is the same as it would be if you were assessing them in a shop.

Once we receive your goods, we will inspect and process them within 24hrs. Refunds will automatically be issued to the same payment method used to purchase the goods. As soon as your return has been processed by our team we will email you to let you know. In the unlikely event that you don’t receive this email within 10 days of posting your parcel to us, please get in touch with our Customer Service Team through our Contact us page or by calling 01977 67999.

If your purchase isn’t everything you expected it to be and you wish to exchange an item the simplest and quickest thing to do is place a brand new order for your new item and return the old one to us for a full refund.

Goods that cannot be returned:

There are some goods you can’t return if you simply change your mind, including:

  • CDs, DVDs or software if you’ve broken the seal on the wrapping
  • Perishable and other items that deteriorate rapidly such as food
  • Custom Built, tailor-made or personalised goods
  • Underwear and earrings
  • Used goods including footwear which have had cleats fitted

European Online Dispute Resolution (ODR)

For information regarding European ODR, please click here.


Right to cancel

In addition to our Returns Policy, under the Consumer Contracts Regulationsof 2013, you have the right to cancel your order up to 14 days from the day you receive your goodsif you are an online, mail or telephone order customer. You then have a further 14 days from the date you notify the retailer of your cancellation to return thegoods.Therefund will include any standard delivery charges paid. You will be responsible for the cost of returning a cancelled order to us.

We will refund to you the price paid for the items and (unless you did not pay for delivery) the delivery charges that you paid up to a maximum amount of the cost of our standard delivery option. You will be refunded to your original method of payment within 14 calendar days of our receipt of the cancelled items or, if earlier, within 14 days from the day we receive proof of return from you. If we do not receive the cancelled items back, we may arrange to collect them from you at your cost.

To exercise your right to cancel, please email us at orders@jscycleshack.com with your order number, first and last name.

Specialized Aethos Pro Ultegra Di2 Carbon Road Bike 2025

Season:2025

Brand:Specialized

Code:42215445440777

"The Specialized Aethos Pro Carbon with Shimano Ultegra Di2 is a true game-changer for riders seeking a blend of lightweight performance and high-tech efficiency. The Fact 10r carbon frame is both stiff and responsive, making climbs feel effortless while offering a smooth ride on descents. The Shimano Ultegra Di2 groupset provides precise, fast, and reliable electronic shifting, ensuring seamless gear changes even in tough conditions. Whether you're aiming for long rides or attacking the hills, this bike combines power, performance, and style in a way few others can." — Chris

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

Bikes are professionally built by trained technicians to ensure optimal performance, safety, and comfort for each customer. Every component is carefully assembled and adjusted to meet the rider’s specific needs and preferences.

Our convenient man-in-van delivery service brings your professionally built bike straight to your doorstep. A dedicated technician ensures it arrives fully assembled, ready to ride, and adjusted to your specifications.


Technical Information
  • Frame
    Aethos FACT 10R Carbon, Rider First Engineered™, Threaded BB, 12x142mm thru-axle, flat-mount disc
  • Tape
    Supacaz Super Sticky Kush
  • 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
  • Seat Binder
    Specialized Alloy, 30mm
  • Fork
    FACT Carbon, 12x100mm thru-axle, flat-mount disc
  • Front Brake
    Shimano Ultegra R8170, hydraulic disc
  • Rear Brake
    Shimano Ultegra R8170, hydraulic disc
  • Shift Levers
    Shimano Ultegra R8170, hydraulic disc
  • Front Derailleur
    Shimano Ultegra R8150, braze-on
  • Rear Derailleur
    Shimano Ultegra R8150, 12-speed
  • Cassette
    Shimano Ultegra, 12-speed, 11-30t
  • Chain
    Shimano M8100, 12-speed w/ quick link
  • Crankset
    Shimano Ultegra R81000
  • Chainrings
    52/36T
  • Bottom Bracket
    Shimano Threaded BSA BB
  • Front Wheel
    Roval Alpinist CL, Tubeless, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, DT for Roval 350 hub, DT Swiss Aerolite spokes
  • Rear Wheel
    Roval Alpinist CL, Tubeless, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered, DT for Roval 350 hub, DT Swiss Aerolite spokes
  • Front Tire
    S-works Turbo 2BR, 700x28mm
  • Rear Tire
    S-works Turbo 2BR, 700x28mm
  • Inner Tubes
    700x20-28, 48mm Presta Valve
  • Weight
    6.93kg (15 lb, 4.4 oz)
  • Weight Size
    56
Sizing Information
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