Tyres contribute to the amount of pass-by noise a vehicle generates. Choosing a tyre with a good noise rating will lower the impact of your driving on the surrounding environment.
What the EU noise rating measures
The EU rating measures the external noise emissions of the tyre in decibels.
Since many people are unfamiliar with decibel values, the noise class is also shown. This categorizes the tyre in relation to forthcoming European tyre noise limits.
- 1 black wave: Quiet (3dB or more below the future European limit)
- 2 black waves: Moderate (between the future European limit and 3dB below)
- 3 black waves: Noisy (above the future European limit)
Decibel levels are measured on a logarithmic scale. This means that an increase of just a few decibels represents a big difference in noise levels. In fact, a difference of 3dB doubles the amount of external noise the tyre produces. Think about the many thousands of cars on our roads each day. If we all chose tyres with lower noise ratings, imagine how much quieter our towns and cities would be?