CADEX Aero 4-Spoke Disc Tubeless Wheelsystem


  • Ultralight 18k carbon composite
  • Super Aero Rim Shape for maximum aero advantage
  • Hookless rims
  • Precision machined CADEX R3-C40 aero hub
  • Increased rim bead width of up to 3mm per side


From the winds of Kona to training rides in unpredictable conditions, the CADEX Aero 4-Spoke combines proven aero performance with confident handling and control. The added crosswind control of the 4-spoke design makes it a top choice for pros like Ironman World Champion Kristian Blummenfelt, who often uses this as a front wheel combined with a CADEX Aero Disc in the rear. The superlight and stiff carbon rims are shaped by exhaustive wind tunnel testing and data. The all-new R3-C40 aero hub with ceramic bearings reduces friction by up to 30 percent over the previous generation. And the 22.4mm wide hookless rims create a seamless integration between the rim and tubeless tire for improved rolling resistance, increased sidewall support, and better grip. It all adds up to best-in-class aerodynamics, unbeatable efficiency, and total control in all conditions.


Wind tunnel tests show that a CADEX Aero 4-Spoke Disc WheelSystem’s combination of a 50mm front and 65mm rear rim profile can surpass the aero performance of competitor disc wheel combinations in headwinds, while achieving lower side force drag in crosswinds.*

*Tests performed with CADEX Aero Tire. CADEX Aero Tire coming soon.


With its optimized composite engineering, the CADEX Aero 4-Spoke Disc WheelSystem achieves best-in-class stiffness and stiffness-to-weight ratios in both transmission and lateral stiffness. Combined with all-new CADEX Low Friction R3-C40 hub technology, the result is unrivaled power transfer and efficiency.


Featuring race-proven hookless technology and a wider 22.4mm inner rim width, the lab-tested combo of a 50mm front and 65mm rear rim affords maximum aero advantage and total control in crosswinds. Disc brakes further enhance confidence and power in all types of conditions.

*Priced as a set–can be sold as a set or individually.


Rim Material

Ultralight 18K Full Composite

Rim Height

50mm (front), 65mm (rear)

Rim Outer Width

30mm (front), 32mm (rear)

Rim Inner Width



CADEX R3-C Hub, Centerlock (front), CADEX R3-C40 Hub, 40T Ratchet Driver, Centerlock (rear)

Hub Compatibility

SRAM XDR / Shimano HG / Campagnolo


CADEX Ceramic


100×12 Thru Axle (front), 142×12 Thru Axle (rear)

Weight w/o valve

880g (front), 1047g (rear)


2 Years


Front Wheel, Rear Wheel, Wheelset

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