As I speak with industry members, regulators and legislators I continue to be stunned by the lack of appreciation of the very critical role that tyres play in our societies.

Governments bleat about fuel security “investing” precious currency to prop up petroleum fuel storage and production in the face of the ever-expanding development of electric vehicles and more recently the advent of hydrogen as a viable fuel with thanks to the PV (solar) industry advancements. Tyres? What do you mean tyres? Without tyres our societies would grind to a halt in the near term. How are they not a strategic consideration?

Our industries (tyre, road freight transport, mining, public transport and leisure) are facing sufficient difficulties with COVID as well as international shipping challenges to be faced with continued ignorance and negligence by our legislators and regulators.

Please review your countries legislative requirements in regards tyre inflation for light vehicles (say <4,500 kgs) and then the same requirement for heavy vehicles (>4,500 kgs). What do you find?

Mostly I think you will find that tyre inflation pressures are regulated for light vehicles via the vehicle manufacturers tyre placard. For heavy vehicles there is little, if any, such requirement. To illustrate the yawning gap between reality and regulation one peak heavy transport regulatory body published a procedure for roller brake testing for heavy vehicles. The procedure details in minute detail the requirements of the pneumatic system on the truck under test yet merely stated “tyres should be inflated.” As everyone in the tyre industry understands a tyre can be inflated at low pressures totally unrelated to actual operating pressures. What connects the brakes to the pavement? Tyres!

I’ve spoken at length about the absolute requirement for a tyre to be appropriately inflated. This is basic physics, the air molecules captured within the tyre’s air chamber actually support the applied loads. If there are insufficient molecules of air the tyre will be overworked so overheat and so enter a failure phase. There are other requirements for the inflation being the actual shaping of the tyre to interface with the pavement at the optimum level, read traction. A wide based tyre requires special construction to maintain the tread platform shape. If the inflation pressure is not at the manufacturer’s specified level will this critical shape be maintained? Then it is not only the performance of the tyre in question but also the safety of the vehicle and that of the general public in the areas this vehicle operates in.

The extensive report produced by the TNO Organisation (TNO 2013 R10986) detailed not only the exhaust emissions as a result of inappropriately inflated tyres but also the road safety outcomes. This paper is now just over eight years old but the situation with real time pressure monitoring for heavy vehicles remains as it was, 50 years or more ago. WHY? Are our regulators asleep at the wheel (or tyre some may say) through entrenched inaction and ignorance? Or is it that there are just “no votes” in tyres and everyone just ASSuMes their tyres are “ok”?

EV tyres

With the advent of electric vehicles, the ramifications for tyres are huge. In the past internal combustion engines (ICE) built up torque over a rev range, drivelines multiplied the torque developed and for heavy vehicles there is a sweet spot for torque. The multi speed gearboxes assisted the driver to maintain forward motion within this torque sweet spot. Electric motors apply maximum torque over most of their operating range. From the instant the power is applied by the driver (be that human or robotic) the tyres are under peak stress. Any deficiency within the tyre will be magnified with detrimental results. Such a deficiency may be of a manufacturing nature but this is largely controllable by the manufacturer. What is not currently controllable is the human maintenance factor, the applied inflation pressure.

Tyre manufacturers have for as long as they have been manufacturing tyres been informative about the criticality of appropriate tyre inflation. There are untold charts and pictorials showing how a tyre is influenced by under or over inflation yet our regulators and legislators continue to keep their heads buried deep out of the light. WHY when tyres are such a critical component of our modern-day motor vehicle? I would charge ignorance and negligence on one hand but then on the other suggest that because tyres work as well as they do, are as forgiving (by nature of their fundamental flexible design) our “guiding powers” can focus on other trendy and glamorous aspects such as stability control or autonomous braking. An important question for these people to consider and respond to; “what item on the vehicle transfers the power (and so directly influence these vehicle control systems) from the vehicle to the pavement (be that power tractive or retardation)? Yes of course, the humble tyre.

So, when a government sponsored or publicly funded body involved in road safety ignores tyres (for whatever reason, ignorance or negligence) are they really serving the interests of our communities and societies or are they just -- I should stop there but you know where I’m going!

The technology to monitor tyre pressures in real time is and has now been available for decades. The TREAD Act (USA) mandated tyre pressure monitoring (TPMS) for light vehicles in the USA in the year 2000. This year TPMS gets a key for its birthday, yes well and truly a mature product (some may say adult) and industry yet, our regulators and legislators continue to ignore the humble tyre.

The upsides of maintaining tyres at an appropriate pressure I’ve discussed previously, all positive. The same detail has been published in many papers (such as the TNO paper!) but we as an industry continue to live in the past whilst adopting hi-tech solutions for other aspects of our industries, e.g., GPS tracking, fatigue monitoring, reefer monitoring and control, real time video surveillance of the drivers and the surrounding traffic conditions. Why? To me there is little respect paid to the critical role the tyre provides for us. So many users do not consider how the tyre works for them and why the simplest of tasks will enhance the performance, yes, I speak of inflation maintenance. Without respect the tyre will never be recognised for the contribution it has made and continues to make.

I publicly and openly challenge our tyre manufacturers as a collective to mount an education campaign to enhance the level of respect the general public has about tyres. The TIA (US) and USTMA have local campaigns on behalf of their members but I consider that until the tyre manufacturers as a collective industry actual improve the level of respect for the humble tyre we will be chasing our tails on a race to the bottom. Our tyres deserve better!

What about Michelin, Bridgestone, Goodyear, Continental, BKT, Dunlop, ZC Rubber, Hankook, Pirelli, Toyo, Sumitomo, Yokohama, Kumho, MRF, Apollo, Nokian, JKTyres, Cooper, Titan, Linglong, Triangle et al?

Remember success does not reward a lack of action. (TT)

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Tyres Europe and the Association of Synthetic Amorphous Silica Producers (ASASP) have released a joint position paper on synthetic amorphous silica (SAS) in tyre manufacturing. The document highlights SAS as a critical component that improves wet grip, reduces rolling resistance and supports durability, thereby enhancing vehicle safety, fuel efficiency, electric vehicle range and lowering use-phase emissions.

A proposed harmonised classification for SAS is under consideration. Though not an outright ban, the industry warns it would likely compel manufacturers to phase out SAS during design rather than manage exposure, effectively bypassing practical risk controls.

Tyres Europe and ASASP urge regulators to base any action on robust evaluation of SAS properties, exposure conditions, established industrial uses and broader socio-economic impacts on European value chains. Policy measures must reflect these factors to avoid unintended disruptions.

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Tegeta Green Planet participated in the recent Social Design Days conference, a three-day event hosted by the Design Institute that centred on circular design and sustainable innovation. The gathering brought together diverse professionals to explore the intersection of creative disciplines and environmental responsibility.

During the proceedings, Tegeta Green Planet Director Shalva Akhvlediani engaged in a panel discussion that examined Georgia’s trajectory in building a circular economy. The conversation addressed the nation’s current obstacles and prospective avenues for growth, with a particular focus on systemic shifts in resource management and regulatory frameworks.

Akhvlediani pointed to measurable advancements in Georgia’s waste management infrastructure, the adoption of Extended Producer Responsibility standards and a growing national recycling ethos. These developments, he observed, are creating a robust base for more judicious resource utilisation and fostering habits of conscientious consumption. The panel further acknowledged that resourcefulness is deeply rooted in Georgian heritage, where mending, reusing and bequeathing goods were traditional practices, though modern consumerism has eroded these customs, necessitating a blend of age-old wisdom with contemporary circular strategies.

A critical takeaway from the discussion was the assertion that technological fixes and legislation alone are insufficient. Genuine progress, Akhvlediani argued, hinges on synergistic cooperation between designers, architects, researchers and creatives to engineer products and systems that prioritise longevity and recyclability from inception. Social Design Days proved instrumental in facilitating cross-sectoral dialogue, promoting circular principles and inspiring actionable solutions for national sustainability. Tegeta Green Planet reaffirmed its dedication to advancing these environmental objectives and supporting collaborative platforms that drive meaningful change.

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Continental is set to construct its first company-owned wind farm adjacent to its tyre production facility in Korbach, within the municipality of Twistetal, Hesse. The initiative will supply electricity directly to the plant, situated roughly eight kilometres away, thereby diversifying the manufacturer's energy portfolio. This strategic move aims to accelerate renewable power adoption, enhance cost competitiveness and diminish reliance on volatile energy markets.

The project features three turbines that, alongside existing solar systems, are projected to satisfy approximately two-thirds of the Korbach plant's electricity requirements. With an annual generating capacity of around 55 gigawatt-hours, the turbines could supply roughly 15,000 average households. Continental has allocated a mid-double-digit million-euro investment, having secured all necessary permits. Groundbreaking is anticipated in 2026, with commissioning expected about 18 months later.

Tyre production consumes significant power for operations like mixing raw rubber and extruding components. The Twistetal wind farm will enable the Korbach plant to meet a larger proportion of demand with locally sourced renewable energy fed directly into manufacturing. This addition complements existing infrastructure while maintaining reliable operations during fluctuating wind or solar conditions. The Korbach facility, employing approximately 2,400 people, produces tyres for passenger cars, motorcycles, bicycles and industrial uses.

Photovoltaic systems at Continental’s Korbach tyre plant.

The selected Nordex N175/6.X turbines have a hub height of 179 metres and a rotor diameter of 175 metres, reaching a total height of 267 metres, making them among the most powerful onshore turbines available.

The Korbach project represents a key step in Continental's broader strategy to expand proprietary energy generation, with similar initiatives considered globally. The goal is a flexible, economically viable energy supply while increasing renewable power proportion, ideally produced near each manufacturing site.

Continental is evaluating feasibility at worldwide plants, considering local conditions, regulations, storage, integration with existing sources and financial viability. Since 2020, the firm has covered global purchased electricity demand with renewables and reduced tyre production greenhouse gas emissions by approximately 180,000 metric tonnes over four years. By early 2026, coal and heavy fuel oil were eliminated at all production sites, replaced by electricity from renewables, biomass, biogas, LPG and natural gas for steam and heating.

Dr Bernhard Trilken, Head of Manufacturing & Logistics in Continental’s Tires group sector, said, “Having our own wind turbines near the plant will give us more predictable energy costs and reduce our exposure to volatile energy markets – key factors for competitive tyre production in Germany. This is fully aligned with our global strategy to expand our own renewable energy generation and will serve as a blueprint for other sites worldwide.”

Klaus Ohlwein, head of the Continental tyre plant in Korbach, said, “The wind farm will bring major benefits to our location. It will help us cover a significant share of our electricity needs in Korbach with our own renewable sources at competitive and more predictable costs. The electricity generated will be used directly in tyre production, including in mixers and extruders. The project is an important step in our sustainability activities at the site and demonstrates how industrial competitiveness and sustainable energy use can be effectively combined in Germany.”

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Pirelli is set to play a central role as the FIM Superbike World Championship concludes the first half of its season this weekend at Donington Park for the UK Round. Marking the final event before the summer break, the Italian tyre manufacturer has equipped competitors with the softest rear compounds from its 2026 standard range. This selection represents a clear advancement in development from the previous year, when riders were limited exclusively to older specification tyres.

For the premier WorldSBK class, the rear tyre allocation is headlined by the SCQ extrasoft compound, intended primarily for qualifying and the Superpole Race. This option, the softest in Pirelli’s portfolio, has already garnered positive feedback from riders during the Emilia-Romagna Round for its exceptional single-lap pace and consistent performance over a sprint distance. Complementing the SCQ are the SCX supersoft and SC0 soft compounds, while front tyre duties are covered by the standard SC1 soft and SC2 medium solutions, with the softer front being the overwhelming preference of last year’s grid, including triple race winner Toprak Razgatlıoğlu.

The notoriously unpredictable British weather remains a critical variable, with cool morning temperatures and frequent rain showers posing significant challenges for teams. Pirelli’s range has historically demonstrated considerable adaptability across fluctuating track and air temperatures, maintaining reliable grip in both cooler and warmer conditions. To address potential precipitation, the allocation is supplemented by DIABLO Wet intermediate and full DIABLO Rain tyres for both front and rear positions, ensuring competitors have viable options regardless of the elements.

In the supporting categories, WorldSSP riders will retain the SCX and SC0 rear compounds alongside the SC1 and SC2 front options. Meanwhile, the WorldWCR field and the emerging talents of the Yamaha R3 World Cup will also be in action, with both series utilising the Pirelli DIABLO Superbike SC1 tyre on both axles throughout the weekend’s racing programme.

Giorgio Barbier, Pirelli Motorcycle Racing Director, said, “Donington Park is a very distinctive circuit and, in many respects, a unique venue on the FIM Superbike World Championship calendar. The opening part of the lap features a series of fast, flowing corners taken at high speed and rapid changes of direction that require riders to manage significant power while the bike is still heavily leaned over. This demands tyres capable of delivering outstanding grip, precision and stability while maintaining consistent performance over race distance.

"Compared with last year, when only standard range solutions were available and no development specifications were included, this season, while confirming the same compounds introduced in 2025, we will provide riders with the complete 2026 standard range. The SCQ extrasoft compound will be the softest option in the allocation and can be used not only in free practice and qualifying but also, potentially, in the Superpole Race. For the longer races, riders will be able to rely on the SCX supersoft and, should temperatures be lower, the SC0 soft compound – solutions that have already demonstrated throughout the season an excellent balance between outright performance and consistency, as reflected by the many new records that have been set.

"Finally, the weather, which has historically been unpredictable in the UK, will once again be a key factor. Rain and low temperatures, even in the middle of summer, can have a major influence on tyre management and race strategies. Having a complete and versatile range available will therefore be essential to provide the best possible support in any weather conditions.”

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