Feasibility assessment of retreads labelling

In order to assess whether the tyre labelling scheme could be extended to include retreaded tyres, as requested by article 14 of Regulation (EC) No 1222/2009, the European Tyre and Rim Technical Organization (ETRTO) has conducted and financed an extensive research program to assess the situation and impact of the relevant factors on the three labelled performances.

To this end, two Designs of Experiment have been organized in order to:
(1) Check the impact of the collected casing on the rolling resistance of the retreaded tyre,
(2) Check the impact of the manufacturing process on the rolling resistance, wet adherence and rolling sound emission of the retreaded tyre.

The document attached summarizes the findings of these experiments, and includes all the data resulting from the measurements.