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CADEX Ultra 40 Wheelsystem

HOLD THE LINE

With a 40mm deep hookless carbon rim, CADEX Super Aero carbon spokes, and an optimised rim layup, the Ultra 40 delivers the ideal balance of speed, stability, and responsiveness. A broad 22.4mm inner rim width enhances tyre support and aero shaping, while ceramic bearings and a 48-tooth ratchet provide race-ready precision and power transfer. Confident through climbs, corners, and crosswinds, the Ultra 40 brings race-ready performance to any course, any day.

$1,799.99 RRP Original price - $2,699.99 RRP Original price

Features

  • 40mm rim depth delivers all-day aerodynamic speed and crosswind stability.
  • CADEX hookless rim technology and refined carbon layup enhance weight savings, durability and tyre performance.
  • 22.4mm inner rim width improves sidewall support and creates a more aerodynamic tyre interface.
  • CADEX Super Aero carbon spokes reduce lateral flex for more efficient climbing and acceleration.
  • Custom-tuned Dynamic Balanced Lacing (DBL) increases spoke bracing angle and optimises static and dynamic spoke tension for greater lateral stiffness and maximum power transfer.
  • Traditional spoke and hub design for increased serviceability.
  • CADEX R3-C48 Aero hub with 48-tooth ratchet provides fast engagement and responsive power.
  • CADEX Ratchet Wave Spring ensures smooth, consistent hub operation under load.
  • CADEX ceramic bearings minimise rolling resistance for maximum efficiency.

Specifications

Rim Material: Carbon
Rim Type: Hookless Clincher
Tubeless: CADEX Tubeless System (rim tape and valves included)
Suggested Tyre Size: 700 x 25C – 700 x 32C
Rim Height: 40mm
Rim Outer Width: 28mm
Rim Inner Width: 22.4mm
ETRTO: 622-22
Front Hub: CADEX R3-C Aero Hub, Centerlock
Rear Hub: CADEX R3-C48 Aero Hub, Ratchet Driver, Centerlock
Hub Compatibility: Shimano / SRAM XDR / Campagnolo N3W
Bearing: CADEX Ceramic Bearings
Front Axle: 100x12mm Thru Axle
Rear Axle: 142x12mm Thru Axle
Spokes: (Front) CADEX Super Aero Carbon Spoke, DBL 16H
Spokes: (Rear) CADEX Super Aero Carbon Spoke, DBL 24H
Nipple Type: Alloy, Internal
Warranty: 2 years (Lifetime registered original owner)
Incident Replacement: 5-year crash replacement program (registered owner)
Weight: (Pair) 1340g (with Shimano freehub, tubeless tape and valves
Intended Usage

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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.

CADEX Precision Reinforced Layup

CADEX precision reinforced layup places high tensile strength carbon fibre 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 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.

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.

Reviews

Please note that our specifications may be impacted by running substitution changes, we highly recommend confirming the specifications of our products with your local retailer at the time of sale if purchasing in-store. *Recommended Retail Prices are subject to change without notice and may vary from store to store depending on freighting and assembly costs.