Specialized Aethos Expert 2021 - Road Bike
Aethos: Billions of calculations in the pursuit of one thing—the perfect ride. It’s more than just a motto, it’s a philosophy: The Specialized Aethos has been designed to straddle the line between a perfected ride quality, extreme light weight, and undeniable style, and this Expert model is no exception.
Key Features:
- FACT 10r carbon frame offers a sublime ride feel
- FACT carbon fork with thru axle for more control
- Shimano Ultegra 2x11 speed drivetrain for slick shifting
- Shimano Ultegra hydraulic disc brakes for consistent speed control
- Colours: Satin Red Tint/Dream Silver / Gloss Ice Blue/Teal Tint/Flake Silver
- Sizes: 44cm, 49cm, 52cm, 54cm, 56cm, 58cm, 61cm
- The Specialized Aethos Expert 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 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.
Frame | Aethos FACT 10r Carbon, Rider First Engineered™, Threaded BB, 12x142mm thru-axle, flat-mount disc |
Fork | FACT carbon, 12x100mm thru-axle, flat-mount disc |
Stem | Specialized Pro SL, alloy, 4-bolt |
Bars | Specialized Expert Shallow Drop, alloy, 125mm drop x 75mm reach |
Front Brake | Shimano Ultegra R8070, hydraulic disc |
Rear Brake | Shimano Ultegra R8070, hydraulic disc |
Front Mech | Shimano Ultegra Di2 R8050, braze-on |
Rear Mech | Shimano Ultegra Di2 R8050, GS medium cage |
Shifters | Shimano Ultegra Di2 Disc R8070 |
Speed | 22 |
Rims | DT R470 Disc |
Front Hub | sealed cartridge hubs |
Rear Hub | sealed cartridge hubs |
Spokes | 14g spokes |
Front Tyre | S-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x26mm |
Rear Tyre | S-Works Turbo, 120 TPI, folding bead, BlackBelt protection, 700x26mm |
Seat Post | Roval Alpinist Carbon Seatpost |
Saddle | Body Geometry Power Expert, hollow titanium rails |
Chainset | Shimano Ultegra R8000, HollowTech 2, 11-speed |
Chain | Shimano Ultegra, 11-speed |
Cassette | Shimano Ultegra R8000, 11-speed, 11-30t |
Pedals | Resin Platform |
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
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