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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Liberty Tire Recycling partnered with Henry County staff and volunteers for a three-day Tire Amnesty Event at the County Barn last week, during which thousands of scrap tyres were collected from residents seeking free and responsible disposal. The recurring programme, offered every three years, drew a steady stream of vehicles ranging from cars and trucks to trailers and farm equipment, generating sizable piles of tyres and underscoring both strong community participation and the persistent need for proper recycling.

County personnel, including Jason Stanley, Jeremy Raisor, James Nutgrass, Darrell Abbott, Zach Smith and Travis Buchanan, worked continuously to unload and organise tyres as residents arrived. Among those taking part was New Castle resident Charles Miller, who delivered over 100 tyres, many from demolition derby vehicles, and also brought tyres on behalf of several family members so that materials from multiple properties could be recycled.

Photo by The Henry County Local

Stanley reported that turnout substantially exceeded the previous amnesty event held three years ago, with residents arriving consistently throughout the collection period. Such events offer a convenient way to remove scrap tyres that might otherwise accumulate on properties, create safety hazards and serve as breeding grounds for mosquitoes and other pests, thereby reducing environmental risks and advancing sustainable waste management.

Officials applaud the Kentucky Division of Waste Management and its local partners for organising these programmes, noting that states collecting mandatory tyre disposal or recycling fees can reinvest them in amnesty days that channel waste tyres into the recycling stream and deter illegal dumping. While the final tally remains pending, county officials anticipate the total will rank among the most successful amnesty events in recent years.

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Max Verstappen secured his first pole position of the season for the Bahrain Grand Prix, lapping fastest at 1:35.130. Lewis Hamilton took second with a 1:35.428. Pirelli’s Soft compound played a decisive role, as the top three all set their best times on the red-marked tyre. Isack Hadjar originally qualified third but will not start from that grid slot due to a penalty.

Kimi Antonelli, fourth fastest in qualifying, will instead line up third. Hamilton began qualifying on the Medium before switching to the Soft, a strategy mirrored by Charles Leclerc, Nico Hülkenberg and Gabriel Bortoleto. The remaining drivers relied solely on the C4. Verstappen used four new Soft sets and improved his benchmark in the final sector on his last flying run.

Track temperatures peaked at 54°C during FP3 before cloud cover arrived. All three compounds appeared in the session, though most drivers concentrated on the C4. Leclerc alone ran the Hard before moving to a new Soft set. Lando Norris, Oscar Piastri, Verstappen and Hadjar used the Medium, with the reigning champion setting his best time on the C3.

Antonelli topped FP3 at 1:36.302, ahead of Verstappen on 1:36.580 and Hadjar on 1:36.860. The Pirelli Pole Position Award was presented by Alvin Chong, a Malaysian actor and singer recognised across Malaysian and Chinese entertainment.

Dario Marrafuschi, Pirelli Motorsport Director, said, “Track conditions improved progressively throughout the day, allowing the Soft compound to deliver a very competitive level of performance in qualifying. Despite this, lap times remained significantly slower than those predicted by the simulations, indicating that the track evolution was not sufficient to close the gap. In the attempt to extract the maximum potential from the C4 immediately, the degradation generated on the compound meant that no genuinely competitive laps could be completed after the first flying lap today. At the same time, in yesterday’s running it demonstrated that it can maintain an acceptable level of consistency over race distances when it is brought gradually into its correct operating window over the opening laps. This characteristic could prove particularly important tomorrow, given the number of Soft sets retained by several teams.

“Tomorrow’s Grand Prix looks especially interesting from a strategic perspective. Most drivers have two sets of Hard tyres available, which should provide a solid option for the longer stints thanks to their greater thermal resistance and lower degradation compared to the softer compounds. On paper, the Medium-Hard-Hard and Soft-Hard-Hard combinations appear to be among the most competitive. There are, however, some particular situations, such as those of Verstappen and Leclerc, who each have only one set of C2 tyres available and may therefore consider different approaches, making greater use of the Soft and Medium compounds or even evaluating three-stop strategies. In this scenario, the range of possibilities becomes much broader, with shorter stints and increased flexibility. By contrast, we are unlikely to see one-stop strategies, which on paper offer no advantage in terms of total race time at a circuit where overtaking remains possible at several points around the track. Finally, there remains an element of uncertainty related to the weather, with a chance of rain that could influence the teams’ strategic choices.”

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American tyre brand General Tire is marking 111 years since its founding on 29 September 1915, when William O’Neil and Winfred Fouse established the General Tire and Rubber Company in Akron, Ohio. What started as a regional tyre maker has evolved into an internationally recognised brand, especially noted for durable tyres suited to SUVs, off-road vehicles and pickups. Since 1987, the company has operated as part of Continental.

The brand’s history tracks closely with the growth of the North American automotive sector. During the 1920s, General Tire earned attention for its ‘General Balloon Jumbos’, which helped push tyre technology forward. As operations grew, the company widened its international reach and became a supplier to major vehicle manufacturers.

William O'Neil, Founder of General Tire

General Tire and Continental first connected in March 1949 through a cooperation agreement covering the exchange of technical expertise and know-how. By the late 1950s, General Tire had opened a tyre testing facility in Uvalde, Texas, then regarded as the largest of its kind worldwide. Continental’s 1987 acquisition opened a new chapter, giving the parent company a global production and sales network for the first time while allowing General Tire to pair its American heritage with worldwide development and manufacturing strength.

Today, the portfolio spans applications from the Grabber GT Plus road tyre and Grabber Cross A/S all-season tyre to the Snow Grabber Plus winter tyre and the Grabber AT3 Plus and Grabber X3 off-road models, all reflecting performance, reliability and American heritage. For the anniversary, General Tire introduced the next-generation Grabber AT3 Plus, an all-terrain successor to the Grabber AT3 with better snow traction, improved wet-road grip and a tread pattern built for demanding off-road use.

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Dunlop Motorcycle Europe is set to support a star-studded rider roster at this weekend’s FIM Motocross of Nations (MXoN) in Ernée, France, aiming to cap another standout motocross season. The tyre range available to competitors includes the sand-focused Geomax MX14 for loose surfaces, the intermediate Geomax MX34 and the Geomax MX54, which has become the preferred choice across a wide range of intermediate and hardpack tracks.

The company will supply tyres to 32 riders representing 16 nations, drawing talent from the FIM Motocross World Championship, North America’s Supercross and Pro Motocross series and other competitions. The event follows last weekend’s season-ending MXGP of Australia, with many of the sport’s top names returning to action in pursuit of the Chamberlain Trophy.

Dunlop has built a formidable recent record at the MXoN, having equipped riders from every winning nation over the past four editions. Team Australia took consecutive victories in 2024 and 2025, Team France claimed the title in 2023 and Team USA won in 2022. This year, Australia arrives with an entirely new lineup in Jed Beaton, Alex Larwood and Aaron Tanti, while the United States fields an all-Dunlop trio led by three-time 450 cc AMA Supercross champion Cooper Webb, joined by Julien Beaumer and Levi Kitchen.

For France, MXGP runner-up Romain Febvre spearheads the Dunlop contingent and is joined by fellow Kawasaki Racing Team rider Mathis Valin. Two-time MXGP World Champion Jorge Prado will represent Spain alongside newly crowned MX2 World Champion Guillem Farres. A host of other leading MXGP and MX2 competitors will also run Dunlop, including Camden McLellan for South Africa, Liam Everts for Belgium, Pauls Jonass for Latvia and Jeremy Seewer for Switzerland.

The MXoN serves as a fitting finale to a season of significant success for Dunlop across European and North American series. In the United States, Ken Roczen captured his first 450 cc AMA Supercross title on Dunlop, extending the brand’s streak of winning every AMA Supercross and Pro Motocross championship since 2010.

In the FIM Motocross World Championship, Guillem Farres secured the MX2 crown and led Triumph Racing to a one-two finish with teammate Camden McLellan. The pair combined for 11 of 19 Grand Prix victories. In MXGP, Romain Febvre finished runner-up, while Kiara Fontanesi narrowly missed a historic seventh WMX title, winning at Foxhills in July and adding three second-place finishes.

Wim Van Achter, Motorcycle Motorsport Manager EMEA, Dunlop Motorcycle Europe, “The fact that so many top riders continue to choose Dunlop Geomax tyres underlines the Geomax range’s performance credentials. We work closely with top riders to develop new Geomax products, using their feedback to refine our tyre technology. Our most recent innovation, Geomax MX54, makes the Geomax range our strongest and most versatile motocross range yet, drawing on our knowledge from winning top professional championships. With its broader scope, it could be the tyre of choice for Ernée’s traditional hardpack clay circuit this weekend.”

Eddy Seel, MXGP Event Leader, Dunlop Motorcycle Europe, said, “We are honoured that Dunlop Geomax tyres are the products of choice for 32 of the world’s most talented riders representing 16 different nations. The level of competition is always high at MXoN, but Dunlop has a history of success. Our riders have already proven the performance and reliability of the Dunlop Geomax range all season long, so we’re ready to continue with that this weekend. Allez!”

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