I feel the same. Did balancing again yesterday, the front right wheel was not properly balanced. After this was done took the car to NICE road, steering still vibrates. the max is at 80km/hr, tried upto 120 and noticed that the vibration reduces after 100. I would now wait for the rings to arrive do another test. The mechanics suggested that since it is steering vibration it is sufficient to check just the front tyres, Any idea if improper rear wheel balancing result in vibration? In the meantime I got this response from hubcebtric-rings.com: Hi, Your order has been submitted to 10th June. Delivery time is 5-10 business days, depending on where in the world the products are delivered. The hubrings has been delivered in letter, so we doesn't have tracking code. Best regards, Customer service / Mirjaana Handshake Trading Oy Are these rings so light weight and thin to be send just as a letter?