"This carousel displays a list of buttons that updates the main product image when a button is clicked"
Ridley - Dean 105 Road Bike

Ridley Dean 105 Road Bike

35% Off
$1,749.00 Original price:$2,699.00
Changing the size selection, or changing the selected color after selecting a size, may change the associated price

Select Style & Size

Select options
  • Select options
    • Black/Red, XS
      sale $1,749.00



    California Proposition 65


    Cancer and Reproductive Harm - P65Warnings.ca.gov

    Tech Specs

    Frame Material:
    24-30t Unidirectional Carbon, Fast Technology
    Dean Aero
    Shimano 105
    Front Derailleur:
    Shimano 105
    Rear Derailleur:
    Shimano 105
    FSA Omega
    Chainring Sizes:
    52 - 36t
    Bottom Bracket:
    Shimano 105
    Cassette Range:
    11 - 30t
    KMC 11-speed
    Forza Stratos
    Brake Type:
    Deda Cronoero
    Deda Cronoero
    Dean Aero Seatpost
    Forza RC31
    Vittoria Zaffiro
    not included
    Recommended Use:
    Manufacturer Warranty:
    5 years on frame

    Dean 105 Complete Road Bike

    Now that you've decided to get serious about triathlon, you can't keep showing up to events with your decidedly un-aero road bike in tow. But you also know that your bank account won't tolerate an insurmountable price tag. Regardless of the rumors, you don't actually have to drop five figures to get fast, and Ridley delivers that unicorn balance of speed and affordability with its Dean 105 Complete Road Bike. Borrowing inspiration from its top-tier sibling, the Dean Fast, this Dean is designed to minimize drag and comes kitted out with Shimano's reliable 105 drivetrain for confident gear shifts as you speed towards T2.

    By now, you're no doubt aware of the benefits and properties of high-modulus carbon fiber, so it should come as no surprise that a manufacturer of Ridley's standing strategically arranges a blend of 30 and 24 ton uni-directional carbon fiber moduli throughout the Dean in order to maximize comfort without sacrificing efficiency or weight. This is a fairly common practice, but what really sets the Dean apart from its competitors is Ridley's FAST-Concept design ethos. FAST-concept is a bike-wide application, extending from the aerodynamic teardrop tubes to the paint used on the frame.

    The aerodynamics of the Dean owe a great debt to the teardrop-shaped tubes. Like the varied moduli of carbon in the frame's layup, teardrop tubes are now a standard feature on aerodynamically-minded frames, so Ridley ups the aerodynamic ante with paint. According to Ridley, the F-Surface paint addresses the tendency of airflow to release prematurely from certain areas of the frame, which in turn creates additional drag in the form of low pressure areas or stalled air in the frame's wake. These low pressure areas result from the tendency for bodies in motion through a surrounding medium (in this case, bicycles through air) to create turbulence in the lamina, or layers, of air through which they're passing.

    It's helpful to think of the F-Surface paint as embracing and facilitating that turbulence. We'll forgo the details of laminar and turbulent drag by noting that, basically, the paint's texture keeps the air on the bike rather than letting it release into the low-pressure areas of stalled air that create drag. This results in a claimed drag differential of -4.03% at 50 kilometers/hour, which, in real world terms, means a faster time between T1 and T2.

    • Cheat the wind with Ridley's time trial machine
    • Aerodynamic shaping reduces drag when drafting is proscribed
    • Carbon fiber blends responsive stiffness and low weight
    • F-Surface paint improves aerodynamics
    • Shimano drivetrain delivers precise gear changes
    • Smooth rolling Fulcrum Racing 7 wheels



    Seat Tube

    Seat Tube

    Effective Top Tube



    Stand Over

    Head Tube

    Head Tube Angle

    Seat Tube Angle

    Bottom Bracket Height

    Bottom Bracket Drop


    XS   51cm 51.2cm 50.6cm 39.5cm   10.1cm 72o 77o   7.5cm 39.5cm 96.6cm
    S   52.7cm 52.7cm 52.2cm 40.8cm   11.6cm 73o 77o   7.5cm 39.5cm 97.7cm
    M   55.4cm 54.8cm 54cm 42.5cm   13.5cm 73o 77o   7.5cm 39.5cm 100.2cm
    L   57.5cm 56.8cm 56cm 43.9cm   15.6cm 73o 76o   7.5cm 39.5cm 102.2cm