| Rough running can have a number of different causes. It can also be caused by tyre wear. Tyre wear caused by driving is not always evenly spread across the entire running surface of the tyre. This causes slight imbalances which affect the smooth running of a wheel which was previously exactly balanced. |
| These small imbalanced actions cannot be perceived on the steering wheel, but they are there. They increase tyre wear and reduce the operating life of the tyres. |
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| smoothest possible running and |
| the wheels / tyres should be balanced at least twice during their useful life. |
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