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- International Energy Agency
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TIRED OF POOR TYRE KNOWLEDGE
- By Adam Gosling
- May 05, 2021
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)
Doublestar Showcases Customised Tyre Solutions At Latin Tyre & Auto Parts Expo 2026
- By TT News
- August 25, 2026
Doublestar Tire emerged as a prominent exhibitor at the 2026 Latin Tyre & Auto Parts Expo in Panama City. The premier industry gathering for the Americas attracted over 700 international exhibitors and more than 30,000 professional trade visitors, providing a substantial platform for automotive parts and tire manufacturers.
The Panamanian event serves as a critical commercial gateway, radiating trade opportunities across more than 20 neighbouring nations. Given Latin America’s varied topography and climatic extremes, which demand superior tyre resilience and wet traction, Doublestar has collaborated with regional partners to engineer customised products. These targeted solutions have secured considerable market acceptance and popularity throughout the area.
Among the showcased innovations, the TBR tyre D902 integrates a wear-resistant compound with an advanced tread pattern, ensuring dependable stability for long-haul routes in tropical heat. The DSU02, a premier passenger car tyre, demonstrates exceptional protection against abrasion and impact, coupled with superior handling in both wet and dry conditions. A diverse portfolio of economically priced models further drew significant attention from purchasing agents.
This strategic participation has notably amplified Doublestar’s brand presence across the American markets and established a robust framework for deeper local engagement. Committed to delivering high-performance, value-added transportation solutions, Doublestar continues to reinforce the international standing of Chinese tyre manufacturers through quality-driven innovation.
Barez Marks 29 Years On Tehran Securities Exchange Amid Market Dominance
- By TT News
- August 25, 2026
Barez Industrial Group, Iran’s leading tyre manufacturer, observed its 29th consecutive year of activity on the Tehran Securities Exchange during a commemorative event held on 23 August 2026. The gathering featured the traditional exchange bell ceremony, underscoring the company’s enduring footprint in Iran’s capital markets.
Speaking on the occasion, Jamal Mirzaei, CEO of Barez Industrial Group, spoke of the organisation’s momentum, asserting that current undertakings and forward-looking blueprints are steadily carving out its tomorrow. The firm’s leadership used the platform to reaffirm its commitment to sustained growth and operational excellence.
Originating as a provincial manufacturer in Kerman back in 1985, Barez has since risen to become a linchpin of the national tyre industry. Strategic upgrades to production lines and the integration of cutting-edge manufacturing processes have propelled its reach beyond borders. Since joining the TSE in 1997, it has outshone six other listed peers in the rubber and plastics category, claiming the largest share of the sector’s overall valuation, which exceeded IRR 330 trillion at the prior session, with the group responsible for over IRR 120 trillion of that figure.
The proceedings also included an award presentation, with TSE Chief Mahmoud Goudarzi offering a commemorative token to Mirzaei in appreciation of the firm’s three-decade record of transparent engagement with the exchange. Later, a press engagement allowed the executive team to walk reporters through notable milestones, pipeline ventures and strategic forecasts, fostering a clearer view of the company’s roadmap for investors and analysts alike.
Continental’s Aero 111 Tyre Now Available In Wider 32 mm Size For Enhanced Comfort And Speed
- By TT News
- August 25, 2026
Continental has introduced a 32-mm variant of its Aero 111 road tyre, expanding the range of its most aerodynamically advanced model. Developed in partnership with Swiss Side, this wider version aims to deliver the same drag-reducing performance while catering to cyclists seeking a combination of speed and improved comfort on demanding surfaces.
The tyre’s aerodynamic efficiency is achieved through a patented tread pattern featuring 48 precision cavities that function as vortex generators. This design manipulates airflow around the front wheel to delay separation, maintaining optimal performance across varying wind angles. The result is a significant reduction in drag and an enhanced sailing effect, allowing for greater forward propulsion with reduced rider effort.

Despite its broader profile, the tyre maintains its speed and durability credentials through Continental’s BlackChili compound, ensuring low rolling resistance and dependable grip in all conditions. Protection is provided by the Vectran Breaker layer, and the tubeless-ready casing is compatible with hookless rims. Offered in black sidewall and three widths, the Aero 111 now serves a wider array of road cycling demands.
Hannah Ferle, Road Product Manager, Continental Tires, said, “With the addition of the 32 mm width, we truly are offering aero performance from every angle. Developing the Aero 111 alongside Swiss Side has allowed us to build a tyre like no other, one that performs across even the most demanding conditions. The Aero 111 has already proven the benefits of advanced airflow management, but this additional width allows us to bring those same aerodynamic gains and crosswind-taming technologies to the modern road cyclist who refuses to compromise on comfort.”
TyreSafe Issues Fresh Warning Over Widespread Part-Worn Tyre Dangers
- By TT News
- August 25, 2026
TyreSafe has issued a fresh warning to UK motorists regarding the persistent dangers of part-worn tyres, drawing on the findings of recent multi-agency enforcement operations. The safety charity has underscored that despite ongoing efforts to regulate the sector, significant compliance failures continue to place drivers at risk. These concerns are based on collaborative inspections conducted over the past year with Trading Standards, police forces and local authorities, which have revealed systemic issues within the market.
Enforcement actions in Norfolk and Lancashire have exposed alarming deficiencies in the safety and legality of part-worn tyres on sale. In Norfolk, an inspection of nearly 200 tyres across several retail outlets found that over a third were in a dangerous condition, featuring exposed cords, structural damage and inadequate repairs. Remarkably, only a single tyre out of the entire batch satisfied all legal requirements, leading to the immediate removal of unsafe products and subsequent enforcement measures against non-compliant sellers.
Parallel operations in Lancashire painted an equally concerning picture, where none of the 30 part-worn tyres examined met the mandatory legal standards. Every tyre inspected failed to display the compulsory ‘PART-WORN’ marking, and many exhibited serious defects such as embedded objects, sidewall damage and substandard repairs. These discoveries have prompted ongoing engagement with businesses to encourage better practices, though the overall findings highlight a widespread disregard for established safety protocols.
In response to the enforcement outcomes, TyreSafe has noted that educational initiatives have yielded some positive changes among retailers. Certain businesses have enhanced their understanding of legal obligations, reduced their stock of part-worn tyres or transitioned to offering new budget alternatives. Nevertheless, the charity maintains that part-worn tyres remain a high-risk category, as compliance is not uniformly observed, leaving consumers vulnerable to products with undocumented histories and hidden structural weaknesses that are not always visible during a casual inspection.
The organisation has emphasised the critical distinction between tyres fitted to used vehicles and those sold as standalone part-worn products. While the former are acquired as part of a complete car purchase, the latter are individual items whose safety and legality depend entirely on the retailer’s diligence. TyreSafe has reiterated that these tyres must meet strict legal criteria, including a minimum tread depth of two millimetres, successful pressure testing and freedom from cuts or bulges, yet enforcement shows these rules are frequently ignored.
Motorists are being strongly urged to exercise caution and prioritise their safety by sourcing tyres from reputable suppliers and conducting regular checks on air pressure, condition and tread depth. TyreSafe has highlighted that opting for part-worn tyres on cost grounds can prove false economy, given their reduced lifespan and elevated risk of sudden failure. The charity continues to advocate for new tyres as the safest choice, stressing that the unknown history of part-worn products can have dire consequences in real-world driving conditions.
Stuart Lovatt, TyreSafe Chair, said, “Our recent education and enforcement activity revealed a deeply concerning picture of tyre safety on UK roads. Too often, part-worn tyres are being used as a dangerous short-term fix rather than a safe, compliant solution. We encountered vehicles fitted with severely aged tyres that should have been removed from service years ago, alongside single-tyre replacements fitted purely to secure an MOT pass. This creates highly unstable and potentially dangerous combinations, including mismatched summer and winter tyres on the same axle, which can seriously compromise braking and handling. Perhaps most alarming, none of the part-worn tyres we inspected carried the legally required ‘PART-WORN’ marking, highlighting a serious lack of compliance and leaving motorists unknowingly exposed to unsafe and unverified products.”

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