This galvanised wheel adapter is required to mount the emergency wheel (art. no. 405 085, see accessories) on a vehicle with defective or missing wheels with a 5-hole wheel hub. This enables the loading of cars and trailers with defective or missing wheels. It does not matter whether the vehicle is equipped with disc or drum brakes. The wheel adapter can be attached in both cases. To attach it to the wheel hub or to attach the emergency wheel to the wheel adapter, a corresponding fastening set is included in the scope of delivery of the emergency wheel.