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Specialized S-Works Aethos Dura Ace Di2 2021 - MTB Bike

£11,750.00
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Cycle to Work

Product Description

Don’t get us wrong, we’re all for racing. Grand Tour top steps, Classic’s Monuments—they’re in our DNA. But sometimes riding simply to ride, riding for the love of riding, is just what we need. And this is what the Specialized S-Works Aethos Dura Ace Di2 lives for. Sure, it’s given nothing up to performance, and happens to be the lightest frame out there, but with no compromise to style. Aethos: Billions of calculations in the pursuit of one thing—the perfect ride.

Key Features:

  • FACT 12r carbon frame offers the ultimate ride feel
  • S-Works FACT carbon fork with thru axle for more control
  • Shimano Dura-Ace Di2 2x11 speed drivetrain for slick electronic shifting
  • Shimano Dura-Ace hydraulic disc brakes for consistent speed control
  • Colours: Chameleon Red/Gold Bronze
  • Sizes: 44cm, 49cm, 52cm, 54cm, 56cm, 58cm, 61cm
  • The Specialized S-Works Aethos Dura-Ace Di2 is available with 0% APR finance

• 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.

All Tredz bikes are:

  • Fully built & ready to ride
  • Fully checked & tested by Cytech qualified mechanics
  • Available with 0% APR finance on any basket over £99
  • UK price match guarantee
  • 365 day no hassle returns
  • Free delivery in the UK Mainland on a date that suits you

In the box with every Tredz bike is:

  • Free Tredz 9 key trail tool
  • Free Tredz pedal spanner
  • Free basic pedals
  • Tredz drawstring kit bag
  • 16 point quality control check sheet
  • Basic bike setup instructions
  • Free Cycle Plan insurance voucher (8 weeks)

Occasionally, without notice, manufacturers change product design and/or specifications.

Specification

Frame:S-Works Aethos FACT 12r Carbon, Rider First Engineered™, Threaded BB, Electronic cable routing only, 12x142mm thru-axle, flat-mount disc
Fork:S-Works FACT Carbon, 12x100mm thru-axle, flat-mount disc
Stem:S-Works SL, alloy, titanium bolts, 6-degree rise
Bars:S-Works Short & Shallow
Front Brake:Shimano Dura-Ace R9170, hydraulic disc
Rear Brake:Shimano Dura-Ace R9170, hydraulic disc
Front Mech:Shimano Dura-Ace Di2 R9150, braze-on
Rear Mech:Shimano Dura-Ace Di2 R9150, 11-speed
Shifters:Shimano Dura-Ace Di2 Disc R9170
Speed:22
Rims:Roval Alpinist CLX, 21mm internal width carbon rim, 33mm depth, Win Tunnel Engineered
Front Hub:Roval AFD hub, 21h
Rear Hub:Roval AFD hub, 24h
Spokes:DT Swiss Aerolite spokes
Front Tyre:Turbo Cotton, 320 TPI, 700x26mm
Rear Tyre:Turbo Cotton, 320 TPI, 700x26mm
Seat Post:Roval Alpinist Carbon Seatpost
Saddle:Body Geometry S-Works Power, Carbon Fiber Rails, Carbon Fiber Base
Chainset:Shimano Dura-Ace R9100, HollowTech 2, 11-speed, Dual-sided Powermeter, 52/36T
Bottom Bracket:Shimano Dura-Ace, BB-R9100
Chain:Shimano Dura-Ace, 11-speed
Cassette:Shimano Dura-Ace R9100, 11-speed, 11-30t

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Aethos Sizing & Geometry

Specialized Logo

Specailized Aethos 2021 Size Chart

Size

Height (cm)

Height (inches)

44

142 - 155

4’8 – 5’1”

49

155 - 163

5’1 – 5’4”

52

163 - 170

5’4 – 5’7”

54

170 - 175

5’7 – 5’9”

56

175 - 180

5’9 – 5’11”

58

180 - 188

5’11 – 6’2”

61

188 - 196

6’2 – 6’5”

Specialized Aethos 2021 Geometry

49

52

54

56

58

61

Crank length

165mm

170mm

172.5mm

172.5mm

175mm

175mm

Stem length

80mm

90mm

100mm

100mm

110mm

110mm

Seatpost length

300mm

300mm

360mm

360mm

360mm

360mm

Saddle width

155mm

155mm

143mm

143mm

143mm

143mm

Handlebar width

380mm

400mm

420mm

420mm

440mm

440mm

Reach

375mm

380mm

384mm

395mm

402mm

408mm

Top tube length, horizontal

508mm

531mm

540mm

562mm

577mm

595mm

Stack

514mm

527mm

544mm

565mm

591mm

612mm

Wheelbase

973mm

975mm

978mm

991mm

1005mm

1012mm

Chainstay length

410mm

410mm

410mm

410mm

410mm

410mm

Front center

574mm

577mm

579mm

591mm

606mm

613mm

Bb drop

74mm

74mm

72mm

72mm

72mm

72mm

Bb height

266mm

266mm

268mm

268mm

268mm

268mm

Seat tube angle

75.5°

74°

74°

73.5°

73.5°

73°

Head tube angle

71.75°

72.5°

73°

73.5°

73.5°

74°

Seat tube length

431mm

462mm

481mm

504mm

532mm

567mm

Head tube length

109mm

120mm

137mm

157mm

184mm

204mm

Bike standover height

705mm

728mm

748mm

769mm

796mm

824mm

Fork rake/offset

47mm

47mm

44mm

44mm

44mm

44mm

Fork length, full

369mm

369mm

369mm

369mm

369mm

369mm

Trail

63mm

58mm

58mm

55mm

55mm

52mm

 

What size frame do I need if I am between sizes? - read here

Please note, all size information is provided as a guide - if you're unsure or need any further assistance you can call us on 01792 799508 ... we're happy to help!

Road Bike Guide

 

Road Bike Guide

Is a Road Bike Right for Me?

If you’re new to the cycling world, we highly recommend taking a look at our bike buying guide overview or our road bike buying guide to help you decide what type of bike is right for your needs.

When you’re choosing a road bike, there are a few things to look out for which can help you work out the quality and performance you can expect from a particular model.


Usage

What road bike is right for you? There are a few different kinds of road bike, and they all have their specialities. We break down their strengths and usage in an easy to read table below.

Type of Road Bike

Usage

Pros

Cons

Sportive Road

Long distance, training, sportive and endurance riding, as well as rough roads.

Comfortable, relaxed geometry is more accessible for riders new to road cycling.

Not as aggressive or stiff, so serious racers may look for a road race bike.

Road Race

Racing and training.

Lightweight, aggressive geometry for most efficient riding position.

Range limited to tarmac roads and cycle paths.

Aero Race

Road and criterium racing.

Aero dynamically efficient and fast. Stiff frames and aggressive geometry.

Heavier than road race bikes.

Flat Bar Road

Training and commuting. Comfortable, fast city riding.

Upright riding position is great for training and city riding.

Limited options of bikes. MTB-like position not great for racing.

Type of Road Bike / Usage

Pros

Cons

Sportive Road

Long distance, training, sportive and endurance riding, as well as rough roads.

Comfortable, relaxed geometry is more accessible for riders new to road cycling.

Not as aggressive or stiff, so serious racers may look for a road race bike.

Road Race

Racing and training.

Lightweight, aggressive geometry for most efficient riding position.

Range limited to tarmac roads and cycle paths.

Aero Race

Road and criterium racing.

Aero dynamically efficient and fast. Stiff frames and aggressive geometry.

Heavier than road race bikes.

Flat Bar Road

Training and commuting. Comfortable, fast city riding.

Upright riding position is great for training and city riding.

Limited options of bikes. MTB-like position not great for racing.

 

 


Frame Material

The vast majority of road bikes are made from either aluminium alloy or carbon fibre. Alloy bikes can offer higher tier groupsets for a lower price, whereas carbon frames come at a significant premium, but are lighter and give that extra performance advantage.

Aluminium

Aluminium alloy frames
Alloy frames have come a long way recently, using hydroforming and butting to keep the weight low, while keeping stiffness high.

Carbon fibre

Carbon fibre composite frames
Carbon frames have a lighter weight and greater stiffness, while maintaining excellent comfort.


Fork

Road bike forks are made to be lightweight and stiff, giving accurate steering, as well as a comfortable ride. Budget road bikes will have alloy forks, whereas mid-range forks often have mix-material forks, with alloy steerer tubes and carbon fork blades. Carbon bladed forks deliver a more comfortable ride, absorbing road vibrations and flexing slightly in rough roads. Full carbon forks are found on high end road bikes. They are especially lightweight and offer even greater stiffness.


Groupset

A bike’s groupset, or drivetrain, is where the biggest difference in component quality is seen. A complete groupset comprises of the following parts:

  • Chainset (aka Crankset)
  • Bottom bracket
  • Brakes
  • Brake levers
  • Shifters
  • Front & rear derailleur
  • Chain
  • Cassette
 Shimano LogoSRAM LogoCampagnolo Logo
Professional Dura-Ace Di2 Red eTap
eTap AXS
Super Record EPS
  Dura-Ace Red eTap
eTap
Super Record
    Red  
Enthusiast Ultegra Di2 Force eTap
eTap AXS
 
    Force  
  Ultegra   Record
  105 Rival  
  Tiagra Apex Chorus
Entry Sora    
  Claris   Centaur
  Tourney    

 

 

Road groupsets are supplied by Shimano, SRAM or Campagnolo. Having reliable and fast shifting can make all the difference when pushing hard. The majority of road bikes have double chainring drivetrains, while triple chainring setups are usually only found on low end bikes and touring bikes. Road bikes will have 7-12 speeds in the rear, with higher gears meaning more options for smoother riding.


Brakes

Disc Brakes

Disc brakes
Disc brakes offer greater stopping power and modulation. They work as well in wet as dry weather, and don’t require the rims to be replaced periodically. They come at a weight penalty, however.

Calliper Rim Brakes

Calliper rim brakes
Rim brakes are lightweight and easy to maintain. They allow greater aerodynamics for aero road bikes and


Wheels & Tyres

Types of tyres

Road bikes tyres don’t vary as much as mountain bike or even hybrid, but they still make a huge difference to how the bike rides. For a detailed look into road bike tyres, see our guide.

Road tyres have long been offered as either clincher or tubular. Clincher tyres are the standard tyres that fit onto standard rims with a tube holding the air. Tubular tyres are glued to a special tubular rim and are fully encased, doing without a tube.

Tubeless tyres are now a feature of road bikes, delivering a compromise between tubular and clincher tyres. They look the same as clincher tyres, but pair up with special rims to offer a proper seal within the tyres, also doing away with tubes.

Tyre Size

Road tyres are traditionally quite narrow. Nowadays the accepted standard is 25c, but 23c and 28c tyres are very common too. The larger the size tyre, the more comfortable they will be, but they will also be heavier and potentially slower rolling. Sportive and flat bar road bikes will commonly have wider tyres, whereas race and aero road bike will tend towards narrower tyres.

Finance

How do I apply for finance?

Spend £250 or more at Tredz and you can spread the cost. Pay monthly over 6-48 months, interest free (dependent on repayment terms and amount).

1Fill your basket with everything you want from Tredz and go to the checkout.

2During checkout, select the finance option you want as your method of payment.

3You will be sent to our finance provider's secure server to complete your application.

4Finance providers PayPal & V12 will use the information provided to make a decision and complete checkout if you are approved.

Read more about buying on finance

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V12 Representative Example: If total purchase price is £1,399.00 with a deposit of £139.90 (10%) and your selected term is 36 months Classic Credit 15.9% APR (interest rate 8.17% fixed), you would pay £43.55 per month. Total charge for credit will be £308.70 and total amount repayable is £1707.70, subject to terms and status.
PayPal Credit Representative Example: Representative 19.9% APR (variable), Purchase interest rate 19.9% p.a. (variable), Assumed credit limit £1,200.00.

Delivery & Guarantee

UK Delivery Information

International Deliveries – Temporarily Suspended 11/11/20

Note: We are still offering international deliveries to the Isle of Man, Scottish Highlands, Scottish Islands, Channel Islands, Ireland, Northern Ireland, Isle of Wight, Jersey and Guernsey.

Courier Delivery update: Due to the COVID19 situation, we are currently experiencing some delays with deliveries. Our couriers are working around the clock to get your order to you as soon as possible but there is a potential delay of up to 48 hours . Please check your tracking on track your order here.

Please download the TNT Track and Trace App for iOS here and Android here so you can keep an eye on your delivery and any further updates.

Please note on the TNT tracking app it may show your delivery status as ‘Collecting’ (as per image below). This means your delivery has left our warehouse and is currently held at TNT main depot and there could be up to a 48 hour delay.

tnt delivery

Please keep checking the TNT tracking for further updates. On behalf of TNT we apologise for any delay and inconvenience this may cause. 

We are committed to offering fast and free delivery, whether you're ordering bikes, accessories or clothing. Our standard delivery service is FREE in the UK, regardless of the size and on all orders over £20.

Please note that bulky products and bikes shipped to outlying UK regions are excluded from free shipping.

Please note that Pre-Order dates can sometimes change due to updated stock information.

Click here for more UK and international delivery information.

Returns & Warranty

It's easy to return a product with our 365 day, hassle free returns. 

We will give you a full refund or exchange on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).

Please note: For hygiene reasons, we cannot accept returns of facemasks, undershorts or underwear if the item has been removed/unsealed from its original packaging.

If your item develops a fault or arrives damaged, please contact us first so we can resolve the issue for you as quickly as possible.

For more information please visit our Returns & Warranty page.

What's In The Box

What's In The Box

As cyclists ourselves, we know you will be keen to get out on your new bike as soon as possible. That's why we provide you with all the essential kit you need to get your shiny new bike rolling for the first time.

Most bikes don't come with pedals as standard so we include a set of basic pedals, free of charge with every bike we send out. We will also provide you with a pedal spanner to fit them and a 9-key trail tool, along with full instructions for setting your bike up out of the box. Each bike is sent out with a 16 point, quality control check sheet so you can be confident that your bike has been fully checked by our qualified mechanics.

What's in the box
  • Basic setup instructions
  • 16 point quality control checklist
  • Free tredz multitool
  • Free tred pedal spanner
  • Free basic pedals
  • Free drawstring kit bag
  • Free bike insurance voucher

All these items are provided at no extra charge and are packed into a Tredz drawstring bag that doubles up as a handy backpack for carrying your ride essentials.

  • Basic bike setup instructions
  • Free ‘basic’ pedals
  • Free Tredz pedal spanner
  • Free Tredz 9-key trail tool
  • Free Tredz drawstring bag
  • Free 8 weeks insurance voucher
  • 16 point, quality control check sheet

Tredz Service:

Tredz bikes are fully built & set up to ride
Read our bike setup guide.

Free UK delivery, on a date that suits you
We will ring to choose a suitable day. Find out more
  • Tredz bikes are fully checked & tested by Cytech qualified mechanics
  • 0% APR finance available on any basket over £99
  • 365 day 'no hassle' returns
  • Free UK delivery, on a date that suits you

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