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In any road race or ride, you face ever-changing situations. Climbs and descents. Fast, flat sections and tricky corners. Group dynamics and solo moves. The new CADEX 50 Ultra Disc WheelSystem targets all these factors. Every component, from the rims to the spokes to the hubs, is engineered to minimise drag with zero compromises. It beats the competition in aero performance, weight, stiffness and overall efficiency.

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TESTING THE CADEX 50 ULTRA

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REAL-WORLD AERO

A fast road wheel is a wheel that best manages the various, ever-changing forces of road riding. One of these forces, especially at higher speeds, is drag. Every aspect of this WheelSystem is engineered and designed to minimise drag, no matter the course profile. From the aero profile of the 50mm carbon rims to the Super Aero spokes and all-new aero hubs, it’s a complete system that was developed through exhaustive wind-tunnel testing and proven fastest in its category in real-world conditions.

BEST-IN-CLASS EFFICIENCY

Whether you’re sprinting, attacking, or taking a big pull on the front, efficiency is your friend. Small gains help you shave seconds, up your average speed, and conserve energy. Nearly weightless CADEX Super Aero carbon spokes deliver wind-slicing speed. Dynamic Balanced Lacing (DBL) technology boosts efficiency by using a wider bracing angle that evens out spoke tension under pedalling forces. An industry-leading weight of 1349g helps improve the system’s lateral stiffness-to-weight ratio up to 41.4% compared to competitor wheels. And an all-new low-friction freehub with ceramic bearings further reduces power loss by up to 30%.

LATERAL AND TRANSMISSION STIFFNESS

To ensure that the least amount power is wasted, the lateral and torsional flex of wheels must be minimised. On the front wheel, the CADEX 50 Ultra has the highest lateral stiffness among its competitors, beating the Zipp 454 NSW by 18.8% and Roval Rapide CLX by 40.6%, all while remaining the lightest of the group. For the rear, the CADEX 50 also has the highest lateral stiffness among competitors, more than 14% stiffer than second place. In terms of transmission stiffness, the CADEX 50 Ultra Disc beats the next best by more than 27%, guaranteeing superior power transfer.

SUPER STABILITY

Aerodynamic efficiency and ultralight weight are important, but a truly transcendent road wheel must also inspire confidence while descending, cornering, or battling nasty crosswinds. The 50mm aero rim profile and Super Aero spokes balance straight-ahead speed with total control in all types of conditions. In addition, a broad inner rim width (22.4mm) and increased hookless bead width (3.8mm) provide greater support for higher volume tyres and enhance sidewall stiffness for better tracking and cornering performance.

Technologies

CADEX Ceramic Bearings

Durable, ultra-hard ceramic bearings further increase hub rolling efficiency with lower rolling resistance and 1.5x smoother action than steel bearings.

CADEX Hookless Rim Technology

CADEX hookless rim technology, featuring a broad inner rim width and durable continuous carbon fibre structure, helps create a rounder tyre shape for superior grip and handling plus added sidewall support for cornering, all without compromising on weight.

Custom-Tuned DBL Technology

Dynamic Balanced Lacing technology sets spokes at a wider bracing angle and for the same tension level under pedalling force, producing a stiffer, more efficient wheel with outstanding power transfer.

Precision Reinforced Lay-Up

CADEX precision reinforced lay-up places high tensile strength carbon fibre only where needed, creating a strong, stiff rim structure at minimal weight.

CADEX R3-C40 Aero Hub

Aero optimised hub features 3rd generation CADEX Low-Friction internals with CADEX ceramic bearings and 40-tooth ratchet engagement.

CADEX Super Aero Carbon Spokes

Ultra-lightweight high tensile-strength CADEX aero carbon spokes minimise lateral flex for more efficient acceleration and climbing and feature a purpose designed aero shape offering class-leading aerodynamic characteristics as well as superior stability in shifting winds.