Adapter Rotor Lug Drive Wide 5 Starlite 55-XD

The Wilwood Adapter Rotor Lug Drive Wide 5 Starlite 55-XD is a precision brake rotor adapter engineered to convert 5 x 4.50-inch bolt pattern applications to Wide 5 rotor configurations. Built from aluminum and finished in black anodized coating, this adapter enables high-performance brake system conversions on custom and modified vehicles where rotor pattern compatibility is critical to installation success.

This adapter weighs 0.98 lbs and measures 7.8 x 1.35 x 8.15 inches, designed for a direct bolt-on fit without modification. The black anodized aluminum construction resists corrosion and provides durability in demanding street and track environments. Wide 5 bolt patterns are commonly found in classic and custom hot rod builds, drag racing platforms, and vintage American muscle cars requiring brake system upgrades. The adapter allows builders to source Wide 5 rotor options—typically offering superior cooling, weight reduction, and performance characteristics compared to OEM patterns—while maintaining compatibility with existing 5 x 4.50 hub assemblies.

Buyers undertaking custom brake conversions, vintage restoration projects, or performance vehicle builds rely on precision adapters like this model to eliminate fitment guesswork. Installation requires verification that the adapter interfaces correctly with both the hub face and rotor to ensure proper brake pad contact and thermal dissipation. Wilwood's brake components are widely used in circle-track racing, street rod applications, and off-road builds where brake system integrity is essential to safety.

This single adapter unit (sold individually) is a core component in Wide 5 brake system installations. Verify your hub bolt pattern and rotor requirements before ordering to ensure compatibility with your specific build platform.