okay so i installed my new rims and tires. I put on 18x8 rims all around with a 41 offset. Tires are falken 912's. The bore size was 74.1 but hubcentric rings were put on to to bring it to 72.6. The problem is that i get a ridiculous vibration between 90kn-125km. the wheels were balanced and they fine.
what could this be?
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