Dean Fast Disc

Dean FAST Disc R-DFD11As(M)

The assembly of the product may differ from the photo. Be sure to check out the specifications.*
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About Dean Fast Disc

We embarked on the development of ournew time trial bike, the Dean Fast, with the ambitious goal of setting a new benchmark for aero TT bikes. Our objective was clear: reduce drag and increase speed, pushing the boundaries of what is permissible under UCI regulations. 

To achieve this, we turned to Computational Fluid Dynamics (CFD). Using CFD simulations, we were able to identify new designs that would minimize drag at speeds around 55 km/h. Afterward the results were validated in the windtunnel at Bike Valley.

The Dean Fast pushes the limits of the latest UCI regulations including the 8:1 rule for tube dimensions and the use of compensation triangles. The F-Surface Plus on the frame and vork create a controlled amount of turbulence, allowing the main airflow to closely follow the tube’s shape.

A removable front derailleur hanger means that riders choosing a 1x set-up, will get the sleekest look possible when using the bespoke cover that replaces the hanger. 

Other features to keep in mind are the maximum tire clearance of 32mm, the UDH hanger and the fact that the frame is developped only for electronic groupsets.

The ultimate test for the Dean Fast was the U23 World Championship Time Trial in 2022 where Alec Segaert won the silver medal racing the the final prototype.

Start configuration
Dean Fast Disc

F-Tubing & F-Surface Plus

How can you ride faster without pedaling harder? How do objects "cut" through wind? While researching ways to improve aerodynamics, the bicycle industry began to gather knowledge from the aviation industry. From this, well-known NACA flight profiles, for designing wings and other components, began to be applied to the tubes of a bike frame.

With further research, our engineers found many additional potential optimisations. By shortening the end of the NACA profiles (F-Tubing), we discovered that drag was reduced. We also created a groove in the frame called the F-Surface Plus. By applying this technique, we created an airflow that flows more efficiently along the tube.

Want to know more about aerodynamics and NACA profiles? Read this blog!

F-Tubing & F-Surface Plus

Race Proven Road

This road bike, trusted by the elite Lotto Dstny cycling team, is built with cutting-edge technology for ultimate speed and performance. The aerodynamic design, lightweight frame, and superior handling make it the ideal choice for serious road cyclists looking to excel in competition.
Race Proven Road

UDH Hanger

The universal derailleur hanger (UDH) is the new standard in the cycling world. Not only is this derailleur hanger compatible with all modern shifting groups, it also protects against derailleur breakage and chain drops. In mountain biking, UDH has long been very common, and Ridley is bringing the technology to other segments as well.

UDH Hanger

Ridley Elite Carbon

Our carbon is manufactured by world market leader: Toray. The Japanese manufacturer is leader in every aspect of carbon development and supplier to absolute top world brands in many industries. For the Elite Series, we use every type of available carbon: 60T, 50T, 30T and 24T.

The higher the 'Ton', the higher the tensile strength of the carbon fibers and the more intensive the development and processing. With 60T, you may need fewer layers of carbon to achieve the desired stiffness as well as the lightest possible bike, but if you built the whole frame with 60T you'd have a very uncomfortable, over-responsive ride. Hence, a mix of 24T, 30T, 50T and 60T carbon is essential as each carbon serves a certain purpose in perfectly balancing stiffness, weight and comfort.

Each bike's unique carbon mix is dependent on its purpose, such as climbing, endurance, etc. In addition, each area of each frame requires its own unique mix depending on its function such as to provide comfort or stiffness. It is here, in the unique carbon compositions, where Ridley makes the difference!

As all our professional teams ride our Ridley Elite Series bikes - including the likes of Tim Wellens, Caleb Ewan or Thomas De Gendt, this means that your bike is treated with the exact same care as theirs.

Ridley Elite Carbon


  • Frame
    Dean FAST Disc, F-Surface Plus, F-Tubing, TA 12x142, Electronic only
  • Frame Level
    Elite Series
  • Fork
    Noah Fast Disc, 60T-40T-30T HM UD Carbon, In-Mould F-Surface Technology, TA 12x100mm
  • Groupset
  • Handlebar
    Forza TTT Integrated basebar , Stem 110mm , Basebar 400mm c-c
  • Brake Type
    Flat Mount
  • Seatpost
    Forza Aero for Arena Fast , 350mm
  • Max Tire Clearance 700c (*)
    32 mm
  • Material
  • Paint Finish
  • Size
  • Range
    Time Trial, Triathlon & Track
  • EAN
  • Pedals
    Not included **
  • Warranty period
    2 years (+ 3 years after registration)


What is my size?

A 790 790 830
B 500 500 540
C 510 532 555
D 90 90 110
E 74.5 74.5 74.5
F 71.5 72 72
G 405 405 405
H 75 75 75
I 964 977 1001
J 763 767 786
S 495 499 518
R 373 394 411

Let us inspire you!

Can’t decide between a few colors or designs? Would you like to see a certain design in more detail? Then check out some of these cool designs, selected to help you choose. Let us inspire you!

+ 39 photos

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Beringen, BE

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