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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KraussMaffei has appointed Xinting Ren as Managing Director of its extrusion business, effective 1 September, 2026, combining the role with his existing leadership of the group’s China operations.

Ren succeeds Ralf Benack, who left the company at his own request on 31^st August , ending a tenure of about two years.

The company said the dual appointment is intended to strengthen integration between its extrusion activities and international operations.

Ren has led KraussMaffei China for the past three years, overseeing cross-technology activities in the Chinese market. Before joining the group, he held several management roles in the chemical industry, including Assistant General Manager at KraussMaffei Company Limited, now operating as Sinochem Equipment Technology Qingdao Co., and most recently served as general manager of Shanxi China Coal Pingshuo Energy Chemical Co., Ltd.

Benack took over leadership of KraussMaffei Extrusion in 2024 and was responsible for the group’s global extrusion business. During his tenure, the company focused on operational processes and customer orientation, reducing delivery times and further developing the Technology Center at its Laatzen site.

The facility now offers 26 pilot lines for development and customer projects, and the company said it also expanded its extrusion technology portfolio.

From September, responsibility for the extrusion business and management of the China business will be combined under Ren’s leadership.

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Nokian Tyres plc has introduced a new premium summer tyre, the Powerproof E, designed for Central and Southern European markets, with A-class ratings in all three European Union tyre label categories across its full range.

The company said the tyre achieves top grades for rolling resistance, wet grip and external rolling noise, reflecting a development approach aimed at balancing efficiency, safety and comfort within a single product.

“Whether the priority is maximizing range and efficiency or achieving confidence and comfort in wet conditions, drivers should not have to compromise on safety. The new Nokian Tyres Powerproof E is designed to deliver outstanding performance in the areas that matter most to drivers,” said Tommi Alhola, Senior Vice-President for Passenger Car tyres in Central Europe.

Samu Lepistö, development manager at the company, added: “Achieving A-class ratings in all three EU tire label categories across the entire range is a significant result. These characteristics are all important to today's drivers yet improving one can often affect another. Nokian Tyres Powerproof E was developed to deliver balanced performance across all three areas.”

The tyre incorporates what the company calls Motion Control Technology, combining tread design, compound development and structural engineering to support efficiency and wet-weather performance.

Depending on size, between 40.9 percent and 42.8 percent of the tyre’s material content consists of recycled and renewable inputs, including rice husk ash, recycled carbon black and recycled steel.

Production takes place at the group’s factory in Oradea, Romania, which opened in 2024 and operates with zero direct carbon dioxide emissions, powered by renewable energy.

The Powerproof E is designed for passenger cars, sport utility vehicles and crossover vehicles, including electric, hybrid and internal combustion models. It will be available in sizes ranging from 16 to 20 inches for the 2027 summer season in Central and Southern Europe.

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Continental Tire Canada has appointed Frank Buntinx as its new Managing Director, effective 17 August 2026. In this executive capacity, he assumes comprehensive oversight of the organisation’s entire Canadian tyre portfolio, which encompasses passenger and light truck vehicles, commercial truck lines and specialised tyre segments. His leadership will guide the strategic direction and operational performance across these diverse business units.

A native of Belgium, Buntinx brings over two decades of tenure with Continental, having commenced his career there in 2003 within logistics and supply chain management. Over the years, he has accumulated a broad commercial skillset through successive roles in marketing, pricing strategy, business analytics, fleet operations and sales. His professional trajectory later elevated him to senior leadership positions in the Benelux region, where he directed marketing efforts and subsequently headed Fleet Solutions and Truck Tires, thereby acquiring multifaceted management expertise.

This transatlantic appointment signifies a pivotal career transition for Buntinx, offering him the chance to infuse the Canadian market with an international vantage point. His arrival is anticipated to bolster Continental’s regional presence, leveraging his extensive cross-functional background to navigate the complexities of the domestic tyre industry and drive organisational growth.

“I am truly excited to join Continental Tire Canada and begin this new chapter. Continental has built a strong business and reputation in the Canadian market, and I look forward to working alongside our talented team to build on that success, strengthening Continental's position while supporting the growth and success of our customers,” said Buntinx.

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Sumitomo Rubber Industries, Ltd., which operates the Dunlop brand, will discontinue the supply of karting tyres by the end of 2027 as part of a strategic review of its business and allocation of management resources.

The company said it would continue supplying products to existing customers until December 31, 2027.

Dunlop has produced karting tyres since 1976, supplying products homologated by the Commission Internationale de Karting-FIA (CIK-FIA), under the Fédération Internationale de l’Automobile, as well as tyres accredited by the Japan Automobile Federation.

The company said its products had supported a wide range of users, from recreational drivers to young drivers aiming to compete at higher levels, and had contributed to the development of karting participation.

It added that the decision followed a review of its medium- to long-term management strategy and changes in the business environment.

The group said it would continue to contribute to motorsport activities, while expressing appreciation to customers and organisations that had supported its karting tyre business.

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