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Wheels with a sporting pedigree are popular among car fans. The OZ Ultraleggera is already a lightweight, track spec design. Now owners can add that motorsport look without replacing the wheel. The OZ Ultraleggera Centerlock Conversion Kit bolts into the hub of standard Ultraleggera wheels (including HLT versions), using the stock bolt pattern. After mounting, each wheel has a single center nut similar to what you would see on a racecar. It’s purely a visual upgrade.
High-Quality Aluminum Construction
The various components of the kit (nut, plate, adapter) are made from precision-machined anodized aluminum. The manufacturer employs an aerospace-grade PA4 alloy that is both stronger and lighter than typical wheel alloys. This is corrosion-resistant anodized with a clear Teflon coating for added scratch resistance. This means the hardware is strong but contributes hardly any weight. Key features include:
- Aerospace-Grade Material: High-strength and low-weight PA4 Aluminum Alloy.
- Durable Finish: Anodized with a clear finish for rust, as well as scratch protection.
- Race-Aerodynamic Design: Station styling lines that allow for true-centerlock racing wheels.
Simple Installation and Personalization
Installing the kit is straightforward. Take off the factory center cap, put on the adapter over the hub when you thread on the new nut. The stock lug bolts are still in use, meaning you tighten the wheel like normal. No cutting, welding, or special tools are required − only some basic hand tools for the screws they provide. Tire fitment is straightforward and reliable, as it fits the existing lug pattern.
You can also customize the way it looks. It accepts a 56mm standard center cap, so you’ll have your choice of using an OEM badge or any custom piece at that scale. The centerlock parts are available in colors (black, red, etc.) to compliment your aesthetic. Enthusiasts point to these kits as a perfect fit for Ultraleggera wheels: one user with the custom 18″-19″ kit reported “no issues … spot fit.” In practice, it’s just a simple bolt-on styling pack.
Preserving Performance
Importantly the conversion doesn’t alter any of the functioning of the wheels. The Ultraleggera HLT is flow-formed − lighter than a cast wheel, but still strong. It makes do with a clean multi-spoke design that balances aggressive appearances with cooling for the brakes. The centerlock hardware adds a little weight in the middle, so there’s no significant penalty to un-sprung weight or handling.
Long story short, it is a well-designed styling kit. It “provides [the Ultraleggera] with a distinctive and expressive design so that you can take center stage”. You go with classic OZ wheels in a modern racing style. It comes with all the nuts, plates, adapters, and screws necessary for installation to simplify the upgrade.
Conclusion
Clean, race-like styling doesn’t have to be complex. OZ Ultraleggera Centerlock Conversion Kit oozes the bold statement of motorsport qualifying, but maintains the original form and performance of mounting hardware for your wheel Lightweight and durable, the precision machined anodized aluminum. Fitting it is straightforward, and standard 56 mm center caps accommodate owners who wish to customize the finish. For proponents after clean track looks without frame-tweaks, this kit is a sensible low-risk styling upgrade and trustworthy.
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