Tyre testing is not a new concept. In fact, is there any industry that can do without tests? However, what tyre testing does bring into consideration is an umpteen number of factors – everything from the road wear to the certification, the testing spots and, of course, the different types of testing and the very tyres themselves. Discussing these very aspects with Tyre Trends, Ismo Halén, Vice President at BD Testing Inc, spoke about Black Donuts, the subjective and objective views of tyre testing, the convenience of BD Testing having its own indoor testing facility and more. Read on…

The name Black Donut is self-explanatory, making it rather individualistic. A tyre resembles a donut and is black in colour – simplicity at its best. Black Donuts offers a range of solutions for tyre product development and testing, tyre factory construction, plant process design and process development. Therefore, Black Donuts has many business areas, and one of them is service in product development. When it comes to testing, Black Donuts owns 90 percent of another company, BD Testing Inc, which is into tyre testing and high-end customer service. Plus, Black Donuts also happens to be one of BD Testing’s customers.

BD Testing’s customers
When we caught up with Ismo Halén, Vice President at BD Testing Inc, he told us, “Black Donuts designs new tyres and new tyre models or improves existing tyres. That’s why they need testing in order to support the product development. Black Donuts Engineering was founded in 2011, and we were a test team within the company in the beginning. However, we separated in 2012 into an individual company, and now we have separate management and everything else that’s individually ours. We don’t have anyone from Black Donuts working at BD Testing. They are only one of our customers.”

And as customers, they can always decide who tests their tyres. “For instance, Black Donuts can use BD Testing for product development testing because we understand each other. However, the customer can  reach out to other companies to test their tyres as well. For example, when a product is finished, customers usually make homlogation tests somewhere else,” Halén explained.

When it comes to customers/clients, Halén mentioned that it’s not exactly easy to acquire new clients. However, he added, “I’m happy because we already have so many customers that even if somebody doesn’t order anything that others do, we are still in a very good situation.” When turning to his plans on approaching any Asian manufacturers, he responded that while they don’t have any plans for Asia, they would consider going there if there are proving grounds that can be used or rented.

BD Testing’s various focus areas
BD Testing goes beyond this and also issues certification. It has a quality system and is accredited for some R117 tests. “This includes rolling resistance, wet grip, noise measurement and snow performance,” Halén mentioned and continued, “Earlier, we would do wet grips, noise measurements etc. But just one year ago, we started focusing more on winter testing. We now conduct snow and ice tests for the label, which comes under the R117 tests. Additionally, we provide technical service to The Netherlands Vehicle Authority (RDW). RDW will issue many types of approvals for many tyre manufacturers, and we can conduct snow tests for them.”

“Furthermore, in Nordic countries, we use studs in the tyre, which has to be approved. Besides, we make road wear testing for studded tyres, which needs mandatory approval from the Finnish Transport Safety Agency, TRAFI,” Halén further explained.

Making it work
As far as testing and tyres go, BD Testing does both indoor and outdoor testing and is currently focusing on winter testing, winter tyres and studded tyres (conducting only product development tests for summer tyres). However, because the business is open all year, the winter tests are held in ice halls during the summer, Halén shared. As for snow testing, the indoor tests are conducted in Ivalo and Sweden.

However, most big tyre manufacturers conduct the majority of their tests themselves. Yet, that doesn’t stop a company like BD Testing. There are certain factors in testing that tyre manufacturers can’t carry out themselves and thus have to turn to the likes of BD Testing.

“For example, with road wear testing, it isn’t something they can do by themselves,” Halén asserted and added, “There are only five laboratories that can do that, and we are one of them. Similarly, indoor testing and snow testing is something they may not want to do – it’s a long way to travel and they don’t have the capacity to do so, which is where we come in.”

Indoor testing and outdoor testing
Speaking of indoor testing, it is the easier one to conduct over outdoor testing, Halén claimed. But since handling driveway in itself involves the car being built outdoors, there’s no choice over there, he informed.

What’s more, Halén asserted that usually they don’t test the same things indoors and outdoors – the two aren’t competing and are individual. “Their requirements too are different. But as for product development, some indoor testing is needed, like footprint or contact presser, which gives the designers a lot of information,” he enlightened.

BD Testing would, however, like to have its own indoor testing facility where tests can be conducted whenever needed. “Although, as of now, we have to rent for indoor testing, which can sometimes be fully booked,” Halén cited and added, “In fact, we want our own indoor testing facility that we can rent to other customers as well. However, it’s a huge investment and is too big for us at the moment.”

Objective and subjective testing
Another challenge that Halén spoke to us about, besides having an indoor testing facility, was in terms of manpower, where getting testing drivers is a challenge right now. When asked about the thought process behind selecting a testing driver (since the testing can be very subjective, from driver to driver), Halén highlighted that it’s the experience that plays a role. “And then, the drivers drive together and decide what works and what doesn’t. While these drivers do subjective tests, they, of course, also conduct objective tests. However, objective testing is easier, because you only have to know how to make the test,” he added.

Halén further said that with robots and automation, it’s possible that subjective testing will eventually get reduced in the future. “But in my opinion, with subjective driving, if a driver drives with a set of tyres, then we have a huge amount of information,” he pointed out. “Therefore, it’s a very fast way to have lots of information. If you try to have the same information with the help of machines, you’ll need several machines and it takes a long time. And if you need to analyse data, it takes a long time to develop a new methodology.”

A happy customer equals a successful company
While Halén gave us his clear visions in terms of BD Testing and the tyre testing industry as a whole, he also threw light on the company’s preparation for new regulations. “Additionally, we are focusing on what we are currently doing, targeting for higher quality and making our customers happy,” he expounded and added,
“Our strategy for that is based on the quality system we have. We have very close contact with our customers, so we try to understand what they need. Hence, I’m not trying to sell something to somebody if they don’t need it. Thus, I think our customers come to us themselves when they need something. So, ultimately, customer happiness has been our key to success.”

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TYRESYSTEM, functioning as the digital arm of AZuR partner RSU, has made Tyre Pressure Monitoring System (TPMS) its central pillar of expertise. This unit moves beyond simple product sales by offering specialised training focused on tyre pressure monitoring systems. Their inventory is substantial, featuring over 500 sensors designed to accommodate a wide spectrum of vehicle types, and this hardware is supported by complementary valves, service kits and diagnostic programming tools.

The importance of this focus became legally binding on 1 November 2014, when TPMS became mandatory for cars, motorhomes and off-road vehicles. For workshop operators, a neglected sensor is a serious liability, as it not only creates a safety hazard but also guarantees a failed roadworthiness test like the TÜV. Consequently, the seasonal tyre change has evolved into a critical checkpoint where technicians must rigorously inspect sensor batteries and overall condition to ensure compliance.

To address this industry need, TYRESYSTEM acts as a holistic online wholesaler for tyres, rims and complete wheels. Recognising that hardware alone is insufficient, they established the TyreSystem Academy to deliver practical TPMS training through both online and on-site courses. This educational push helps workshops master modern tyre complexity. Correctly maintained TPMS systems preserve optimal pressure, reduce tread wear and extend tyre life, directly supporting resource conservation and a functioning tyre circular economy within the AZuR network.

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Parcours, a British wheel brand specialising in aerodynamic, wind-tunnel-tested carbon wheelsets for road, gravel and triathlon cycling, has launched the Strade GT, the debut model in its new GT Series. At the heart of this wheelset lies VibraCORE, a technology developed alongside Lineat and Nottingham Trent University. VibraCORE embeds Lineat’s reclaimed aligned carbon fibre material, known as AFFT, directly into the rim’s spoke bed. This structural integration reduces vibration at its source rather than simply damping it after transmission begins.

The principle behind VibraCORE is straightforward: less vibration reaching the rider means less fatigue, allowing for longer, faster rides. Not all vibrations affect the body equally. Certain frequencies are either amplified by the human body or directly contribute to muscle exhaustion. VibraCORE targets these specific ranges, absorbing and dissipating vibrational energy before it travels through the wheelset to the rider. This approach directly addresses the harsh, high-frequency ‘road buzz’ that makes rough roads particularly draining.

In practical testing at standard road tyre pressures, VibraCORE reduces root mean square vibrational energy by an amount equivalent to lowering tyre pressure by roughly 10 to 15 psi. Crucially, this benefit comes without the usual penalties of softer tyres, such as reduced rolling efficiency or compromised handling precision. As a result, the Strade GT delivers a calmer, more controlled ride over long distances while retaining the stiffness, responsiveness and aerodynamic performance expected from a high-end wheelset.

To verify these claims, Parcours partnered again with Nottingham Trent University for controlled real‑world testing across multiple riders and surfaces. Using vibration sensors and frequency domain analysis based on power spectral density, the data showed that rims with VibraCORE reduced vibration energy by 19 to 23 percent compared to identical rims without the technology. This translates directly into a noticeably smoother ride on rough terrain and lower cumulative fatigue over extended rides.

Beyond comfort, the Strade GT represents an evolution of Parcours’ existing Strade platform. Its rim profile is optimised around a 30‑mm tyre, outperforming the previous model by 3.2W at 48 kmph, improving handling stability by 15 percent and achieving a weight of just 1,130g. VibraCORE also enables the use of lightweight Alpina Carbolite carbon spokes. Although sustainability is not the primary goal, the technology incorporates recycled carbon from Lineat’s AFFT process. Parcours is now developing a full circular pathway so that carbon recovered from old wheels, including those from its Crash Replacement Programme, can be reprocessed into VibraCORE components for future wheelsets. In this way, the Strade GT proves that speed and comfort need not be opposing forces.

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Continental is celebrating two decades of its Camaçari tyre factory, situated near Salvador in Brazil. This occasion represents a major milestone for the firm’s operations throughout the Americas, as the site has served as a trusted partner across South America since its April 2006 opening. The facility supplies both replacement tyres and original equipment manufacturers with high-grade products for passenger cars and commercial vehicles.

Approximately 136 million tyres have rolled off the line at Camaçari over the last 20 years. Roughly BRL 1.2 billion (approximately EUR 235 million), has been invested there in the past 10 years alone to sharpen competitiveness through better efficiency, product quality and responsiveness to customers. The factory currently provides jobs for around 2,000 people, making it a leading industrial employer locally, with its future success built on team spirit, consistent quality and a strong customer focus.

The site began as a greenfield project in 2004 and was formally inaugurated in April 2006, with the first tyre, a ContiEcoContact 3, produced five months earlier in November 2005. Today, the factory supplies original equipment to major automotive names including General Motors, Volkswagen, Renault, Honda, Fiat and Mercedes‑Benz, proving its dependable and uniform product standards. This same drive for steady improvement supports the plant’s role in Continental’s wider environmental goals.

By constantly tracking energy use and managing it responsibly, the Camaçari plant ensures that all power generated or consumed on site is used as efficiently as possible. The facility relies entirely on LED lighting, which saves more energy than conventional options, and has carried out targeted production upgrades such as better insulation on critical machinery. These efforts have yielded annual energy savings, including a total cut of 10.4 gigawatt‑hours in 2025, equal to about five percent of the plant’s yearly energy consumption.

Shander Basílio, plant manager of the Continental tyre plant in Camaçari, said, "Our 20-year journey in Camaçari is a story of continuous growth, operational excellence and the deep commitment of our people to this region. I would like to sincerely thank all our employees for their outstanding contribution as well as to our customers for their continued trust. Looking ahead, we are dedicated to writing the next chapter of our plant’s success.”

Rodrigo Bonilha, head of Continental Tires South America, said, “I would like to congratulate our manufacturing team in Camaçari on their 20th anniversary. The production facility is a key asset for our business in the region. By manufacturing premium tires locally, we ensure a reliable supply for the Brazilian market while securing valuable local jobs. This ‘in the market, for the market’ approach is fundamental to how we deliver consistent product quality and performance for customers and consumers.”

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The Tire Industry Project (TIP) has announced the publication of a scientific study presenting a sophisticated model designed to track how tyre and road wear particles (TRWP) move through land and freshwater environments. Known as the Mass Balance Model, this tool provides a method for predicting particle concentrations within watersheds across different climates and regions, offering high spatial detail on how these particles travel from roadways towards rivers, lakes and estuaries.

Tyre and road wear particles are created unintentionally during normal driving, where tyres meet the road surface. As scientific and regulatory focus on these particles intensifies, reliable models are essential for understanding their environmental pathways. While research is growing, the behaviour of these particles in waterways remains particularly understudied, making this modelling advance especially relevant.

The model draws on global and local datasets and open-source frameworks, including the ERA5 global climate dataset by the Copernicus Climate Change Service and the Wflow catchment hydrology model by Deltares, a research institute. Its accuracy has been confirmed using field measurements from the Seine River basin in France, the Chesapeake Bay basin in the United States and the Yodo River basin in Japan – three very different watersheds. This validation shows the approach works across diverse watershed sizes, climates and stormwater management systems.

Applying the model to these three regions revealed that the share of particles reaching surface waters varies from just 2 percent up to 18 percent, depending on urbanisation, climate, basin size and drainage infrastructure. Importantly, improvements to stormwater systems could cut particle transport to surface waters by as much as half. This refined model builds on earlier work and is now globally applicable, with ongoing development aimed at making it accessible beyond the scientific community.

Nicolas Tissier, Director of Research at TIP, said, “Having a robust, reproducible model for TRWP transport and fate that can be applied worldwide is essential for advancing both scientific understanding and practical solutions. Our role at TIP is to support rigorous, transparent science that helps researchers, policymakers and industry make evidence-based decisions. By making this model open access, we aim to support broader collaboration across the scientific community around TRWP in the environment and to enable the development of more effective mitigation strategies.”

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