New And Worn Phase Tests Make Tyres Safer And Long Lasting
- By Ertugrul Bahan
- December 25, 2024
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..!
Dunlop Tires North America Appoints Robert Liu As AVP Of Product Management
- By TT News
- October 27, 2026
Dunlop Tires North America (DTNA), a Sumitomo Rubber Industries, Ltd. subsidiary, has appointed Robert Liu as Assistant Vice President of Product Management. Liu brings more than three decades of varied experience in the tyre and automotive sectors to guide the Dunlop and Falken brands through their next stage of product innovation and expansion.
Liu started his career as a simulation engineer at General Motors before spending 27 years at Continental Tire, where he held positions in Product R&D, Sales and Product Management. He also completed a five-year expatriate assignment in Shanghai, leading Product Management and R&D for Asia-Pacific, and most recently directed R&D for the American region with a focus on replacement Passenger Light Truck tyres. In his new role, Liu will lead product development, overseeing PLT and Truck & Bus Radial products with a skilled Product Management team.
Ken Hsu, Vice President – Marketing, DTNA, said, “We are excited to welcome Robert to our team. His extensive experience and proven leadership in the tyre industry align perfectly with our goals for innovation and growth. We believe his insights will greatly benefit our product strategies as we move forward.”
Policy Changes A Priority
- By Gaurav Nandi
- October 27, 2026
Portugal’s retreading industry is caught between its established technical capabilities and a market increasingly shaped by low-cost new tyres, regulatory shifts and price-driven purchasing. Associaçao de Recauchutagem de Pneus (ARP) President David Laureano speaks to Tyre Trends about the necessary changes, current state of the industry and how to rebuild confidence and create conditions for investment.
Are policy changes necessary to create a level playing field for retreaders?
I consider policy changes a priority for boosting Portugal’s retreading sector and plan work on four fronts. The first is to review the environmental and economic treatment of retreading so that charges and incentives acknowledge the extension of tyre service life.
The second is to strengthen enforcement of compliance obligations for all operators placing tyres on the market. The third is to introduce criteria regarding lifecycle costs, performance and circularity in public procurement, enabling the participation of technically suitable retreaded solutions.
The last is to facilitate company access to instruments for industrial modernisation, energy efficiency, training and innovation. These measures should be developed in collaboration with public entities and other sector stakeholders. Policy quality improves when those who manufacture, use and manage tyres participate in their formulation.
What are the ARP’s priorities under your leadership?
My priority is to strengthen a unified voice for the sector while respecting the diversity of the companies that comprise it. Building trust among users by demonstrating the quality of domestic retreaders. I want to contribute to an association that stays close to its members and is capable of gathering reliable data, fostering knowledge sharing and presenting well-founded proposals to public authorities.
I also view it as essential to bring the fleet industry, educational institutions and technology partners closer together. We can collaborate on training, research and the dissemination of best practices, thereby strengthening the sector’s collective capacity. The change I would like to see in the market is a more informed purchasing decision, one that recognises tyre performance and the value of extending its service life.
What role can retreading play in reducing raw material consumption and waste?
Retreading preserves a significant portion of the tyre structure by utilising a technically sound casing and enables a new cycle of use. This reduces the need for materials required to manufacture an entirely new structure and postpones the casing’s end-of-life.
Realising this potential requires effective management across the entire value chain including initial selection, maintenance, timely tyre removal and casing inspection. Benefits must be measured rigorously. Savings depend on the tyre type, process and usage conditions; therefore, we must communicate substantiated results rather than applying a single percentage figure to every situation.
What hinders greater acceptance by fleets and consumers?
Doubts regarding quality and safety persist, alongside insufficient information about the industrial process. The perception of poor quality was already among the obstacles identified in the sector characterisation study conducted by Valorpneu in 2019. Trust is built through transparency that requires explaining casing selection, production controls, traceability and the tyre’s suitability for its intended use.
There are specific United Nations regulations for retreading, namely Regulations No. 108 and No. 109. Under these regulations, all operators are required to conduct tests on the tyres they produce, and the tests are identical to those performed on new tyres. The sector also needs to make results more visible through fleet monitoring and comparable usage data.
We cannot focus solely on sales as after-sales service is crucial for building trust and ensuring continuity with the end customer, whether they are transport companies or private individuals.
How can retreading be better integrated into circular economy and sustainability policies?
Retreading should be considered right from the initial tyre selection. This entails prioritising casings designed for extended use, ensuring proper maintenance and establishing systems to evaluate their utilisation. Valorpneu specifically identifies extending service life, the potential for reconstruction and the segregation of tyres with retreading potential as preventive measures.
We would like to see this logic translated into specific objectives and indicators such as how many casings are utilised, how many usage cycles are achieved and how much resources are preserved. These results would help guide incentives and purchasing decisions.
What is the current state of the tyre retreading industry in Portugal?
Portugal possesses a retreading industry with experience, technical expertise and close ties to its customers. Its presence is particularly significant in the heavy-vehicle tyre market. However, it is a sector that needs to strengthen its position.
Commercial pressure challenges companies to demonstrate the product’s value over its lifespan, particularly in a market where the purchase price is a decisive factor. Our ambition is to unite the sector to transform existing industrial capacity into a stronger market presence driven by quality, information and constructive institutional representation.
What is the impact of low-cost imported tyres on retreaders?
Pressure from low-cost tyres is a key concern, one that has also been highlighted in ARP’s public communications. When the decision focuses solely on the initial price, it becomes harder to highlight the value of durability, technical support and the potential to reuse the casing for further service cycles.
Geographic origin alone does not determine a tyre’s quality. We advocate for competition based on verifiable criteria regarding safety, performance, compliance with environmental obligations and lifecycle costs. There is also the issue of continuity as retreading relies on the availability of suitable casings. Therefore, the choice of a new tyre should also take into account its retreadability potential.
Which segments show the highest demand?
Heavy vehicles form the sector’s core base. Road freight transport is therefore a central market, and we see opportunities to strengthen our presence among passenger transport and service fleets, tailored to the specific demands of each operation. There are also specialised applications.
Retreading data for 2024 covers commercial, agricultural, industrial and civil engineering tyres, among other categories. While these figures characterise the activity, they should not be confused with domestic market demand shares. Our goal is to work with each segment to identify where retreading offers a technically sound and economically advantageous solution.
How do regulatory uncertainty and capacity expansion affect investment?
An industrial facility invests with a multi-year horizon. Equipment, training and process improvements require confidence in future operating conditions. When rules or charges change, projects tend to be re-evaluated, complicating investment and expansion decisions.
A concrete example of a shift in the economic landscape is the Ecovalor (environmental fee). In 2025, the Valorpneu schedule indicated a zero Ecovalor for domestically retreaded tyres placed on the market. In 2026, it introduced a specific schedule with a 10 percent bonus, and for the heavy-duty category, the indicated rate is EUR 8.07 per tyre, plus VAT.
We believe that changes of this nature must be accompanied by dialogue with the sector, an assessment of their impact and predictability. Companies need to understand how their environmental contribution will be valued before committing to new investments.
How important is the total cost of ownership regarding demand?
It is fundamental. For a fleet, the purchase price is just one part of the equation. The assessment must include mileage, fuel consumption, maintenance, downtime and casing utilisation. Comparisons must be made under similar conditions regarding load, route, axle position and usage.
Retreading must demonstrate its value in this context through concrete results. I would like to see more long-term relationships between fleets and retreaders with records that allow for tracking cost-per-kilometre and improving decision-making over time. This benefits both parties.
Should retreading be recognised as a strategic industrial and environmental activity?
Yes. That is the vision I want to help affirm. It is an activity that brings together industrial production, technical expertise, transport services and resource preservation. This recognition must be reflected in industrial policies, investment instruments and purchasing decisions.
It must also be accompanied by the sector’s own commitment to quality, innovation and demonstrating its results. ARP aims to contribute to this effort alongside companies, fleets and public entities. We share a common interest in maintaining an industry capable of generating value in Portugal and making better use of the resources on which we all depend.
What is the outlook for the next three to five years?
I see growth potential, but that growth will depend on the conditions we are able to create. Increased fleet focus on operating costs, the need for efficient resource utilisation and industrial modernisation could create opportunities. To capitalise on them, we need suitable casings, customer trust and economic stability.
I would not venture a specific growth rate without a sufficiently solid statistical basis. Ambition must translate into concrete objectives by winning over users, increasing casing utilisation and strengthening corporate competitiveness.
- Satish Goyal
- Jairaj Zarekar
- Anand Kumar
- H. M. Meena
- Sanjeev Sharma
- Arup Kumar Misra
- Tushar Suhalka
- Varun Manjunath
- Jayant Vaidya
India’s Tyre Recycling Industry Examines Standards, Technology And Circularity At RE-GO 2026
- By TT News
- October 26, 2026
India’s tyre recycling industry discussed regulation, technology and material recovery at RE-GO 2026, a three-day conclave held in South Goa from 10 to 12 September. Organised by the Tyre & Rubber Recyclers Association of India (TRRAI), the event brought together more than 250 delegates, representatives from more than 200 companies and participants from more than 20 states.
The third annual conclave, hosted at Novotel Goa Dona Sylvia, included more than 20 speakers and experts, three panel discussions and more than 20 exhibitors and sponsors. The conference programme ran on 10 and 11 September , followed by a departure programme on September 12.
Regulation and technology dominate discussions
Held under the theme of policy, compliance and circularity, the conclave brought together recyclers, technology providers, tyre industry representatives, policymakers, regulators, standards professionals, consultants and business leaders.
Discussions covered regulation and standards, extended producer responsibility (EPR), traceability, automation, environmental performance, digitalisation, artificial intelligence, material recovery and circularity.
The technical programme examined automated pyrolysis, co-processing, national standards for tyre pyrolysis oil (TPO) and recovered carbon black (rCB), fleet management, EPR policy and compliance, and the Common EPR Portal. Other topics included life-cycle assessment (LCA), greenhouse gas emissions accounting, digital transformation and technical innovation.
Industry and regulatory representatives attend opening session
The inaugural session featured Satish Goyal, President of TRRAI, and Jairaj Zarekar, its Secretary. Other participants included Anand Kumar, Former Director and Scientist ‘F’ at the Central Pollution Control Board; H. M. Meena, Scientist ‘D’ and Joint Director at the Bureau of Indian Standards; and Sanjeev Sharma, Senior Vice-President And Business Head For Mobility Solutions And Fleet Management at JK Tyre & Industries.
Arup Kumar Misra, Chairman of the Assam Pollution Control Board, was the chief guest and delivered the keynote address, “Tyre Recycling: From Liability to Asset”. The address focused on turning end-of-life tyres into recoverable resources and sources of economic value.
Three panels examine the sector’s priorities
The conclave featured three high-level panel discussions on sustainable recycling policy, recycling technology and the development of a circular tyre economy.
The first examined policy, standards, EPR, compliance and sustainable development. The second focused on shredding, granulation, automation and continuous pyrolysis. The third considered how collection, technology, markets and manufacturing could be connected to support a circular tyre economy.
The panels were moderated by Tushar Suhalka, Varun Manjunath and Jayant Vaidya, respectively.
The event also included an exhibition featuring more than 20 exhibitors and sponsors, networking sessions and an awards and recognition ceremony.
TRRAI highlights collaboration and standards
TRRAI said it had more than 500 members, representing approximately 75 percent of the tyre recycling market. The association works on standardisation, professionalisation, technical advancement, regulatory dialogue and collaboration across the sector.
The conclave highlighted the role of co-operation among industry participants, government bodies, regulators, standards organisations, technology providers and technical experts. Its discussions reflected a focus on stronger standards, improved traceability, environmental accountability, digitalisation and circularity.
Renaud Lapointe Named President Of Metso's Aggregates Division
- By TT News
- October 24, 2026
Metso has named Renaud Lapointe as President of its Aggregates business area and a member of the Metso Leadership Team, with the appointment taking effect on 15 November 2026. He takes over from Markku Simula, whose departure from the company was announced on 11 August 2026.
Lapointe has been with Metso since 2005 and has served as President of the Europe and Central Asia market area since December 2024. Before that, he led the Metso Products business line within the Aggregates business area from 2018 to 2024, and between 2014 and 2017 he was Vice President of the Crusher Systems business line in the same segment. Earlier in his tenure, from 2005 to 2014, he held several leadership positions at Metso in France. Lapointe holds a degree in mechanical engineering from ISTIL in Lyon, France.
Lapointe said, "I am excited to return to the Aggregates business and lead such a highly respected global organisation. With its strong customer relationships, industry-leading solutions and talented team, the business is well positioned for continued success and growth.”
Sami Takaluoma, President and CEO, Metso, said, “Renaud brings experience from both our Aggregates business and our market area organisation. This combination will support the continued development of our offering and close cooperation with customers. I look forward to welcoming him to the Metso Leadership Team.”


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