H&R 40555573 TRAK+ 20mm Wheel Adapter 5x112 66.5CB to 5x112 57.1CB Pair

The H&R TRAK+ Wheel Adapter (Part #40555573) is a 20mm hubcentric wheel adapter designed to convert a 5x112 bolt pattern with a 66.5mm center bore (vehicle side) to a 5x112 bolt pattern with a 57.1mm center bore (wheel side), using M14x1.5 thread pitch. Sold as a pair, these adapters allow wheels with a different center bore specification to be fitted securely and accurately to your vehicle's hub.

Like all H&R TRAK+ products, these adapters are hubcentric, meaning they seat precisely on the vehicle's hub — just as an OEM wheel would — eliminating vibration and reducing stress on wheel bearings and suspension components. The wheel-side of the adapter features the target bolt pattern and center bore, enabling a factory-quality fit with non-standard or aftermarket wheels.

Key Features:

• Hubcentric design — fits flush to the vehicle hub for vibration-free, precision fitment
• 20mm per side — widens overall track width for improved stance, handling, and lateral stability
• Bolt pattern: 5x112 (vehicle side) to 5x112 (wheel side)
• Center bore conversion: 66.5mm (vehicle) to 57.1mm (wheel)
• Thread pitch: M14x1.5
• Sold as a pair (two adapters included)
• Made from a proprietary aluminum/magnesium alloy — up to 70% lighter than a comparable steel product
• Hard anodized finish for corrosion resistance and long-term durability
• Precision CNC-machined in Germany to strict tolerances
• Suitable for street and track use

H&R TRAK+ Wheel Adapters are engineered for enthusiasts who demand OEM-level quality in their wheel fitment solutions. Whether correcting a center bore mismatch or expanding wheel options, these adapters deliver a secure, stable, and professional result.