Marangoni has manufactured a Ringtread tyre that achieved an “A” class energy saving level in the same test used for new tyres (ECE.R 117). The result was achieved by applying a Blackline tread ring with an optimised design for low rolling resistance on a high-quality casing, which featured the best rolling resistance class already in its first life. The ring used for this test featured “a special compound created ad hoc for the occasion”. Retreading took place at Marangoni’s plant in Rovereto, where the group’s headquarters and R&D centre are also located. The test was carried out by the independent test laboratory Prüflabor Nord.