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BMW E34 E39 HUB ring
When using an E39 wheel on an E34
If you want to upgrade your E34 BMW with an E39 wheel set, you will feel a very strong vibration above 60km/h. This is due to the HUB diameter deviation between E34 and E39 wheel. It has to be fixed with a HUB ring, which needs to be 100% accurate. Due to a very tiny size problem the vibration will not vanish, that is the reason if you already use a cheap plastic ring and your car still vibrates at high speed. Plastic rings most cases reduce the vibration, but will not solve the problem 100%, This hub ring KIT was made of aluminum to solve this problem 100%.