Please forgive my indulgence on the topic of tyre testing, but the end result of a safe tyre is, the tyre is only safe IF the appropriate inflation pressure is used!

The physical road testing of a pneumatic tyre is the last part in a very long line of testing procedures used to manufacture the tyre. The actual manufacturing is not the end of the line as the tyre has to be competently mounted to a wheel and then appropriately inflated prior and during use.

If the tyre/wheel assembly is not balanced in mass and dimension, then the tyre is not going to perform as expected, nor will the tyre perform as expected if the inflation pressure is not appropriate to the load and speed the vehicle is going to be utilised at.

The humble pneumatic tyre is a composite assembly of many different materials, each having to work in harmony and unison with each other.

The different materials used to manufacture the tyre have already undergone substantial testing as individual products to assure the sought-after properties and qualities are exactly what is required to produce a tyre that is not only safe but performs as expected.

Many years ago, on a major construction project in Asia with one of my clients, the tyre company I was an engineer with suffered many catastrophic tread separation failures. This was a time critical project so having haul trucks out of service was a serious impediment to achieving the extensive earthworks required. A long story short, I was given to understand that there was a change in the supplier of the carbon black used in this particular tyre tread specification. The fresh manufacturer’s product checked all of the (then) testing parameters, but when it came to actual live service, there was a deficiency somewhere. I was never privy to the actual product details, just the end result of seeing haul trucks with fuel and hydraulic tanks on the ground having been slapped off by tread packages parting from the tyre casing. Having up to 1,000 kg of tread rubber flapping out of control is not conducive to a safe operation.

The testing regime for the product used was seemingly insufficient to identify this issue pre-production, ending up with very costly results.

One can read in various publications of tyre testing where a group of journalists and motoring writers take vehicles fitted with various tyre producers’ products around a circuit in an attempt to quantify the performance, in lap times, but more importantly, in feel.  ‘Through the seat of your pants’ is a commonly used phrase.  As a young two-wheel motorcycle racer, I progressed from using treaded road tyres to a full racing slick. The feeling was totally different and, to be honest, I didn’t ever get the slick tread tyres to operate as they were designed.  After progressing to three-wheel bikes (sidecars), slicks became the ideal product.

In todays’ tyre production world, I suggest that the development on MotoGP motorcycles leads the way. Think of a MotoGP bike where cornering lean angles of up to 65 degrees, yes 65 degrees, are common place, all the time transmitting a power to weight ratio of more than 1:1, which is more than one horsepower per kilogramme of weight (including the rider!).  When combined with the technology developed in the giant OTR tyres used in mining, the development of tyre performance is progressing rapidly. The ability of a giant mining tyre to support a load in excess of 100 tonnes per tyre (think 50 average passenger cars, yes that’s per tyre) whilst travelling at 60 km/hr is an everyday event for a mining operation. These tyres on a drive position transmit thousands of horsepower to motivate the truck. These numbers are far in excess compared to your daily drive!

A passenger car tyre benefits greatly from all of this research and development leading to the actual physical testing of the tyre in the hands of the journalists pushing a car around a circuit.

Yet, all this testing can be undone by the end user’s reluctance to verify that the tyre’s operating pressure is appropriate for the duty cycle being undertaken. The adoption of real time tyre pressure monitoring (TPMS) has generated an increase in safety IF the driver actually uses the data.

Race pilots (drivers and riders) carefully study the operating tyre pressure detail as they well understand that just ½ a psi may make the difference between winning or finishing off the podium.

Alas, our industry has not really educated the daily driver to the critical importance of ensuring their tyres have the appropriate inflation pressures installed. Inflation, it seems, is only important to economists and price rises.

All the material testing, quality control in production and physical mounting of the tyre can be undone by the ignorance of the end user in not attending to the inflation pressures adequately. No matter how deep the science used, the quality control measures employed within production our product’s success remains at the whim of the end user as to whether they can be bothered to ensure the very item that provides their safe passage is indeed fit for purpose.

Regardless of the impressive advances in testing technology, the serious quantitative leaps in the use of computer aided design and manufacture, the improvements in material science yielding growth in all the useful features for a tyre combined in production benefitting the end result can be undone by end user apathy. As an industry, we have a programme of continuous improvement, but does the end user have the same? Do they care?

For all the testing programmes we, as an industry, have in place, the one lacking I feel is the understanding of the level of knowledge from the perspective of the driver. Do they understand the information that the physical tyre testing provides? In the case of a motoring enthusiast, very much yes, but they make up a small percentage of the population.

The advent of the Euro 7 standards will draw the performance of tyres into the everyday realm for the legislators and regulators. Again, how the daily drivers that use their vehicles for commuting actually care is an unknown, and I feel that the care factor is probably less than zero.

In speaking with learner drivers, I ask whether the driving instructors had mentioned tyres at all and was totally unsurprised when the answer came back as a no. I know I have said before that unless we can engage drivers into understanding and appreciating their tyres’ contribution to their personal safety whilst driving, then our industries progress will be stymied.

All the progress in material science, advanced vehicle standards, wonderful testing regimes can all be negated when the vehicle driver ignores the very basic of the tyres operating requirement – the appropriate operating inflation pressure. 

How we change the mindset of the end user is still testing my knowledge and patience; it is more than tiring to keep on hearing that people don’t even acknowledge the benefits they enjoy from the use of the product our industry produces.

Please educate the end user on the critical importance their tyres have in overall on-road safety. Look after your tyres, so when you call upon them to look after you, they will be appropriately equipped to do so.

Stay TyreSafe

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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.”

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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.

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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.

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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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