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Label and rolling resistance limits* | | Classes 11/2012: Limit 8.0[kg/t] |
When a tire rolls, rubber components are deformed. Partly the deformation energy generated is dissipated into heat which is called rolling resistance. It can be understood as loss of energy causing additional fuel consumption. Within the scope of the “EU-regulation” a seven band grading system has been created classifying rolling resistance product performance in kilogram (tire-rolling resistance) per ton (total tire load). The rolling resistance value kg/ton is a product performance criterion caused by the tread and the casing of a tire. For most tires the rolling resistance ratio between tread casing is situated at approximately fifty-fifty. Thresholds have been adjusted according to the average European product performance.
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Label and noise limits* | | Classes 11/2012 |
The noise label shows the exterior "coast-by" noise (with engine turned-off) measured at a certain distance (7 m from road center). Following the “EU-regulation” a three band grading has been developed based on the noise value in decibels. The reason for introducing noise labeling is with the intention to lower the EU-Health expenses based on noise nuisance. While traveling, one will not recognize the exterior noise as interior noise as there is no direct link between the two.
<br> The EU Tire Label *
Introduction timeline: Replacement Introduction timeline: Original Equipment
*European Union press release 28.09.2009
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