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| The tread depth is measured in the main tread channels. |
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| Do not measure at the TWIs (Tread Wear Indicators). |
| Measure the tread depth in the main tread channel, at the points where the tyre is worn most heavily. The main tread channels can be identified by the TWIs (tread wear indicators). The position of the TWI indicators is marked at various points on the sidewall of the tyre. The bars of the TWI have a height of 1.6 mm. This is the minimum tread depth required by German law. |
| Different values may apply in other countries. |
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