Unlocking Tyre Testing

Tyre testing

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

Industry Veteran Chris Rhoades Joins MAXAM Tire To Lead Northern Region Sales

Industry Veteran Chris Rhoades Joins MAXAM Tire To Lead Northern Region Sales

MAXAM Tire has named Chris Rhoades as its new Zone Sales Director for the Northern region, a move that underscores the company’s dedication to expanding its footprint and enhancing customer service within the speciality tyre aftermarket. The appointment reflects a broader strategy to strengthen leadership and competitive positioning in the sector.

Rhoades brings over 25 years of international industry experience and a well-established reputation as a leading voice in the tyre business. His leadership credentials include being elected to two separate terms on the Tire Industry Association Board of Directors. Most recently at BKT Tires, he managed strategic growth in complex and highly technical off the road markets, where he aligned regional execution with global strategy, led cross functional teams and consistently delivered measurable revenue increases.

In his new capacity, Rhoades will direct all sales operations across the Northern region, collaborating closely with customers and partners to ensure performance, service and support remain synonymous with the MAXAM Tire brand. His appointment signals a focused effort to drive results through experienced leadership and deep market knowledge.

Jimmy McDonnell, Vice President – Sales and Marketing, MAXAM Tire, said, “We are excited to welcome Chris to the MAXAM team. Chris brings deep industry knowledge, proven leadership and a strong customer-first mindset that will create immediate value for our partners. His experience and vision will play an important role as we continue to grow our presence, strengthen relationships and expend the MAXAM brand across the market.”

Bekaert Announces Leadership Change As Olivier Biebuyck Takes Over As CEO

Bekaert Announces Leadership Change As Olivier Biebuyck Takes Over As CEO

Bekaert’s Board of Directors has announced the appointment of Olivier Biebuyck as the company’s next Chief Executive Officer, effective 1 June 2026. He brings extensive expertise in leading, expanding and transforming global industrial enterprises through both organic growth and acquisitions, positioning him to drive Bekaert’s future strategic goals.

On that same date, the board will co-opt Biebuyck as a director. Meanwhile, current CEO and board member Yves Kerstens will conclude his mandate on 31 May 2026, having led the company in recent years. He will also step down from his directorship as of that day.

The leadership transition marks a carefully planned succession, with Biebuyck’s track record seen as critical to advancing Bekaert’s long-term ambitions. The changes take effect at the end of May and start of June 2026.

Jürgen Tinggren, Chairman of the Board of Directors, said, “I am proud to announce the appointment of Olivier Biebuyck as CEO of Bekaert. The Board is convinced that he is the right person to lead the transformation of the company in its next chapter. On behalf of the Board and the entire Bekaert team, I would like to express our sincere appreciation to Yves for his leadership, commitment and contribution to the company over the past years, and wish him the very best.”

Biebuyck said, “Bekaert has an impressive history of innovation, business expansion and evolution. I am honoured to take up the role of CEO at Bekaert. I look forward to working closely with the Board, the leadership team and all colleagues around the world to further transform and grow the company and create long term value for all our stakeholders.”

Kerstens said, “It has been a privilege to serve as CEO of Bekaert and to work alongside our colleagues around the world during the past years. I am proud of what we have achieved together and wish Olivier all the best to lead the company in building a strong future.”

GRI Extends Pneumatic Tyre Warranty Coverage To 10 Years

GRI  Extends Pneumatic Tyre Warranty Coverage To 10 Years

Sri Lanka-based GRI Tires has extended its limited warranty coverage for pneumatic tyres to up to 10 years, effective from 2026, as the specialty tyre manufacturer seeks to strengthen customer assurance across its agricultural, construction and material handling businesses.

The revised warranty policy applies to all GRI-branded pneumatic tyres manufactured on or after January 1, 2025, and covers customers in more than 80 countries. The company previously offered warranty coverage of up to seven years.

Under the updated policy, agricultural radial tyres will be covered for up to 10 years, while agricultural bias tyres will receive coverage of up to eight years. Construction, earthmover, industrial, material handling, port and mining tyres will be covered for up to five years, subject to terms and conditions.

GRI said warranty protection would cover qualifying defects, with credit issued on a pro-rated basis.

For qualifying failures occurring within the first three years, and where radial tyre wear does not exceed 20 per cent, customers will receive a full replacement credit.

The warranty applies exclusively to the original end-use purchaser.

“This enhanced 10-year warranty is more than a policy update — it is a statement of our conviction in the quality of every tire we manufacture,” said Barry Guildford, global commercial director at GRI.

“We build tires to perform in the most demanding conditions, and we stand behind them.”

Customers can submit warranty claims through authorised GRI dealers and distributors, or directly through the company’s customer support channels.

GNH Appoints Martin Rathke As Managing Director Of Nordmann Subsidiary

GNH Appoints Martin Rathke As Managing Director Of Nordmann Subsidiary

Georg Nordmann Holding Aktiengesellschaft (GNH) has appointed Martin Rathke as Managing Director of its subsidiary Nordmann (Nordmann, Rassmann GmbH), effective 1 May 2026. The move marks a strategic step in the company’s ongoing leadership development.

Rathke joins with considerable leadership experience and deep knowledge of international sales and distribution within the chemical distribution sector. His career includes years of service in a family-owned enterprise, where he held senior management roles with global responsibility. He will now share leadership duties with Ulrich Cramer, who remains in his position, and together they aim to form a closely aligned team to advance Nordmann’s strategic direction.

The joint leadership will focus on accelerating global expansion through targeted strategic, organic and inorganic growth while optimising existing operations and continuously refining the company’s portfolio strategy. Backed by the commitment of its shareholders, Nordmann seeks to strengthen its international presence and evolve into a global player in the chemical distribution industry.

Irina Zschaler, CEO of Georg Nordmann Holding Aktiengesellschaft, said, “Martin brings exactly the combination of entrepreneurial mindset, international experience and leadership strength that we value in our relationships and for our path to grow. Our collaboration is based on responsibility, integrity and the aspiration to create added value together for all involved and the entire group. We are therefore very much looking forward to welcoming our full Nordmann team.”