CADEX Ultra 40 WheelSystem

From race day to Strava segment hunting, this is our high-performance, all-rounder WheelSystem for every road riding ambition. A balanced 40mm rim depth helps you conquer climbs, hammer flats, and rail descents with equal effectiveness—so you’re always on it from the first mile to the last.

ALL-DAY AERO

40mm deep hookless carbon rims hit the ideal balance of aerodynamic performance and crosswind stability. A broad 22.4mm inner rim width supports a rounder tire profile and helps create a more seamless interface between tire and rim, reducing drag while improving grip and handling in all conditions.

CONFIDENCE ON ANY COURSE

From big climbs to sweeping corners at speed, the Ultra 40 is built for real-world riding. Its aerodynamic shaping, stiffness-to-weight ratio, and direct power transfer offer elite riders a wheel that performs at the highest level—no matter the route or intensity.

POWER RESPONSE

CADEX Super Aero carbon spokes, optimized carbon rim layup and an exclusive lacing pattern deliver outstanding lateral and transmission stiffness for responsive acceleration and consistent performance across variable terrain. The traditionally-spoked aero hub and ultra-low friction ceramic bearings are also easily serviceable.

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

A broad inner rim width and durable continuous carbon fiber structure create a rounder tire shape for superior grip and handling plus added sidewall support for cornering, all without compromising on weight.

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CADEX Precision Reinforced Layup

CADEX precision reinforced layup places high tensile strength carbon fiber only where needed, creating a strong, stiff structure at minimal weight.

CADEX R3-C48 Aero Hub

Precision machined 48 tooth ratchet hub with CADEX Ratchet Wave Spring offers ultra-fast engagement, reduces aerodynamic loss and virtually eliminates bearing load as ultra-smooth, low-rolling resistance CADEX ceramic bearings further reduce watt loss.

CADEX Super Aero Carbon Spokes

Ultra-lightweight high tensile-strength CADEX aero carbon spokes minimize 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.