A set of tires for one of your customers represents a significant investment for them, but if they drive away with a vibration complaint, you're going to have a comeback. So how do you resolve these issues? It is probably going to be a road test, typically above 55 to 65 miles per hour. This takes a lot of time, depending where your shop is located. So how do you solve these problems? The first part is understanding the problem. Chances are the rim has runout and other issues, meaning it is not running true. Also, tires can have issues with radial force variation. But there is a tool out there where you can align the two and cancel each of those issues out.

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