New And Worn Phase Tests Make Tyres Safer And Long Lasting

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What does ‘Tyre Labelling’ guarantee? It shows schematically the classification of tyres in terms of fuel consumption, noise and wet performance. The tyre manufacturer is obliged to demonstrate the values ​​indicated on the label in tests carried out in accordance with the test method described in EU regulations. This essentially means that the performance parameters of the tyres in question are at least exactly at this level or above the positive side of the limit scale, but only when the tyres are new, i.e. at the beginning of tyre installation. It is technically expected that the stated performance values ​​will not change until the end of the first 10,000 kilometres or until wear of approximately 1.5 mm occurs.

Who knows what the actual grading of tyres will be after the second 10,000 kilometres or at 3 mm down wear stage? No one can correctly estimate what the wet noise and traction will be after most of the mini-kerf or notches are eliminated or reduced, but only when the tyre is tested it can be monitored. Or if the tyre's grooves are completely ‘V’ type, and after a period of time the tyre's traction forces change significantly, then rolling resistance and wet braking behaviour will become significantly different.

The performance level of worn tyres might be therefore quite uncertain and must be taken into account on a legal basis. The wet performance of worn tyres will be a check point for ‘wet grip class’ grading on EU Tyre label after 1st July of 2024, which is in line with the demand of tyre industry parties asking more sustainability.  Thanks to the introduction of a new EU regulation R117-04, tyres sold in EU distribution channels meet the same minimum wet braking performance requirements not only when new but also when worn down to the legal minimum tread depth of 1.6 mm.

EU is the most sensitive and advanced market to sustainability in the world. It is driven at any time by the increasingly aspiring regulatory agenda and there is always a constant development in this respect. Requirements of consumers or the automotive industry are more demanding by a more conscious society. Tyres’ life cycle contributing to a more sustainable future proactively identifies and addresses the potential human health and environmental impacts associated with the industry. Therefore, safer and more environmentally sound mobility options are always geared towards resource conservation and fuel economy amongst the focus points of innovations.


 

Thanks to the introduction of a new EU regulation R117-04, tyres sold in EU distribution channels meet the same minimum wet braking performance requirements not only when new but also when worn down to the legal minimum tread depth of 1.6 mm. They must therefore be tested both as new and as worn tyres before receiving the 'wet grade’ on the label. This means that EU drivers can now buy safer tyres that meet the legal minimum standards for wet braking performance, even when worn down to the legal minimum tread depth.

As a weak point of R117-04 regulation, it only covers wet braking of new and worn-out tyres. It does not cover ‘noise’ and ‘rolling resistance’ items given on labelling or more simply endurance performance level of especially cheap tyres in the market with a 1.6 mm tread depth assuming they will not change!

Informal wet braking tests conducted by ETRTO show that the wear rate of group ‘C1’ tyres can decrease by up to 50 percent, while the loss rate of group ‘C2’ and ‘C3’ tyres remain in 10 percent. The new regulation R117-04 therefore does not apply to group ‘C2’ and ‘C3’ tyres, as they normally have a greater tread depth and it is assumed that the level of wet braking does not change during the wear phase. However, since group ‘C1’ tyres have a smaller tread depth, it is assumed that their contact patch is more subject to negative changes, so that the wet braking performance also changes more after use. 

As a weak point of R117-04 regulation, it only covers wet braking of new and worn-out tyres. It does not cover ‘noise’ and ‘rolling resistance’ items given on labelling or more simply endurance performance level of especially cheap tyres in the market with a 1.6 mm tread depth assuming they will not change!

The new R117-04 regulation may mainly be considered as sustainability issue rather than total safety. It promotes tyre usage until defined min tread depth creating a room to consumers to trust the tyres above minimum tread depth level. However, it should still be positively considered a step forward to the worn tyres’ safety regulation. It accepts that wet braking level of worn tyres are more critical and important safety issue and should be regulated. By the way, consumers may use their tyres in longer stage, giving a contribution to a greener world.

The transparency provided by the new regulation, which came into force on 2024 July, is even more essential, as some performances deteriorate over time, especially in terms of safety. R117-04 in this term guarantees enhanced safety, better respect for the environment and the protection of motorists’ purchasing power. 

Common consumer behaviour shows that 50 percent of car tyres are demounted before reaching a residual depth of 3 mm and replaced with a new set of tyres.

Michelin has studied the safety margin of used tyres since 2018 and has stressed the importance of tyres to be used until 1.6 mm remaining tread depth. The best way was to test worn tyres because it can easily reflect the real risks a driver can face on the road. During the study, the results were surprisingly varied. It was shown that some worn tyres performed better than new tyres when braking on wet roads. This was exactly what Michelin has been saying for a long time. The performance of different tyre brands also varies considerably.

Common consumer behaviour shows that 50 percent of car tyres are demounted before reaching a residual depth of 3 mm and replaced with a new set. In global scale, this makes around 400 million tyres are prematurely scraped every year. A quarter of this amount, or almost 100 million tyres, would save at least 6 million tonnes of CO2 instead of reproducing it. The implementation of this regulation will certainly have an impact on the demand for new tyres in Europe.

R117-04 presently focus mainly on only tread depth attribute, while aspects such as ageing or rubber structural integrity degradation remain outside the scope of this amendment.

In addition, in the hope that higher performance requirements will not result in higher costs for consumers, the changes are designed to encourage consumers to continue using sustainable tyres instead. Once drivers are confident in their tyres, they will drive to a tread depth of 1.6 mm, potentially saving EUR 6 billion a year by not complying with proposals to reduce tread depth to less than 3 mm.

R117-04 presently focuses mainly on tread depth attribute, while aspects such as ageing or rubber structural integrity degradation remain outside the scope of this amendment. We also mentioned some additional weak points above. However, imposing these standards, will increase the driver’s awareness for worn tyres performance limits and let them to make more informed decisions when purchasing tyres.

On the other hand, understanding the ‘NEW AND WORN PHASE TESTS CONCEPT’ will become the standard mentality of the customer, who will be able to assess the attitude towards the initial performance of the tyres, which may change over time, but should not! The new challenge will be to weed out products that are not gripping in the wet when worn and have not met these expectations for years..!

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    Pyrum Supervisory Board Extends Contract Of CFO Kai Winkelmann

    Pyrum Supervisory Board Extends Contract Of CFO Kai Winkelmann

    Pyrum Innovations AG has announced that its Supervisory Board has extended the contract with Chief Financial Officer (CFO) Kai Winkelmann until 31 March 2030 to ensure continuity in the management of the company.

    Winkelmann joined the firm in February 2021, and on 1 April 2022, he was initially named to the Executive Board as CFO. He has so far played a major role in obtaining the company's funding during his tenure at Pyrum, including last year's successful capital raise. Winkelmann is in charge of Finance, Compliance and IT in his role on the Executive Board.

    Alf Schmidt, Chairman of the Supervisory Board, said, “We are pleased about the contract extension of Kai Winkelmann, who has proven his skills and in-depth expertise in the financial sector and at the management level in recent years. Over the last four years, he has made a significant contribution to the development of the necessary administrative structures and to the success of the company, and has promoted its rapid further development. We have confidence in his foresight and are convinced that Winkelmann will continue to play a central role in the successful implementation of the company’s goals in the years to come.”

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      Bridgestone Selected To Continue As A Constituent Of Three Globally Recognised ESG Indexes

      Bridgestone Selected To Continue As A Constituent Of Three Globally Recognised ESG Indexes

      Bridgestone Corporation (Bridgestone) has been selected once again to continue as a constituent of three internationally renowned environmental, social and governance (ESG) indexes: the MSCI ESG Leaders Indexes, the FTSE4Good Index Series and the Dow Jones Sustainability World Index (DJSI World).

      Bridgestone has been a part of the MSCI ESG Leaders Indexes for two years in a row since 2023, the DJSI World for three years in a row since 2022 and the FTSE4Good Index Series for seven years in a row from 2018. Bridgestone's specific Mid Term Business Plan (2024-2026) has been steadily implemented, putting sustainability at the centre of its operations. The company's 2020 vision and Mid-Long Term Business Strategy served as the foundation for the plan.

      According to the company statement, “Setting forth the vision of ‘Toward 2050, Bridgestone continues to provide social value and customer value as a sustainable solutions company’, Bridgestone links its business to the realisation of carbon neutrality, a circular economy and nature positivity across the entire value chain. From the ‘produce and sell’ phase and the ‘use’ of its products through to their ‘renewal’ to raw materials, Bridgestone aims to build a foundation for creating sustainability value.”

      The following initiatives have contributed to Bridgestone's inclusion in these indexes:

      • Contributing to a circular economy and attaining carbon neutrality by using ENLITEN technology to make tyres from recycled and renewable resources, using BCMA and switching to ‘Green & Smart’ manufacturing at Bridgestone locations to increase resource productivity and energy efficiency.
      • Encouragement of nature positivity through initiatives for the sustainable use of water resources and natural rubber that are closely related to the commercial operations of the firm, including strengthening assistance for natural rubber smallholders.
      • Strengthening of a thorough structure and procedure for human rights due diligence that aims to identify, mitigate, avoid and disclose human rights concerns.
      • Visualisation and disclosure of the impact of social contribution actions that are in line with the global goals.

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        Continental Gets Tire Manufacturer Of The Year Award

        Continental Tire Award

        German automotive company and tyre major Continental has been added another feather to its cap with bagging the ‘Tire Manufacturer of the Year’ at this year’s Tire Technology International Awards for Innovation and Excellence at this year’s Tire Technology Expo.

        With this, Continental becomes the only tyre maker to have won two concurrent awards – Tire Manufacturer of the Year and Environmental Achievement of the Year – Manufacturing. The company’s Lousado facility in Portugal was also recognised for manufacturing tyres CO2-neutrally since last year.

        Edwin Goudswaard, Head of Research & Development, Continental Tires, said, "We are especially proud to be the only manufacturer to be honoured twice at the Tire Technology Awards in an extremely competitive field. Both awards highlight our strong commitment to sustainable tire development and manufacturing. In such a highly competitive market, this success demonstrates our innovative prowess and our ability to actively shape the future of the industry."

        Interestingly, this also marks it the fourth time that the German company has bagged the Tire Manufacturer of the Year award. The awards took into consideration tyre makers globally and were evaluated by a jury of 27 independent industry experts.

        Going forward, Continental has outlined its ambition to switch all of its tyre plants to fully carbon-neutral production processes by 2040 at the latest.

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          Hankook Tire Names Jongseon Ahn And Sanghoon Lee As New Co-CEOs

          Hankook Tire Names Jongseon Ahn And Sanghoon Lee As New Co-CEOs

          Hankook Tire & Technology (Hankook Tire) has appointed Jongseon Ahn and Sanghoon Lee as Executive Directors and new Co-CEOs, following a resolution passed at the Annual General Meeting and Board of Directors meeting held on 26 March.

          Ahn will be in charge of Hankook Tire's global innovation, R&D, procurement, production and quality, while Lee will be in charge of global sales and marketing initiatives to strengthen the premium positioning of the company's unified global brand, Hankook, as well as the supply of original equipment (OE) tyres for new vehicles. In addition to the leadership nominations, shareholders approved all eight agenda items at the Annual General Meeting, including the approval of the consolidated financial accounts, partial revisions to the Articles of Incorporation and director appointments.

          Ahn has extensive leadership expertise and a proven track record of advancing technology innovation in the operational holding firm, Hankook & Company. He oversaw general management and spearheaded innovative initiatives in 2021 while serving as COO of Hankook & Company and Head of ES (Energy Solution) Business Headquarters. He became the CEO in 2022 and oversaw the company's expansion of premium Absorbent Glass Mat (AGM) battery sales into important international markets, which greatly increased profitability and strengthened the company's platform for long-term success.

          Lee's vast worldwide leadership experience serves as the foundation for his profound understanding of marketing and global sales strategy. He has held important regional leadership positions in China and Europe since 2018, during which time he has played a crucial role in bolstering the company's premium brand positioning internationally and continuously promoting creative business performance, both of which have greatly increased revenue. At the conclusion of last year, he was nominated as Hankook Tire's Co-CEO due to his success and leadership.

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