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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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.”

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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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The Yokohama Rubber Co., Ltd. has announced that a Mitsubishi Triton pickup truck, fitted with its GEOLANDAR M/T G003 mud-terrain tyres, secured the overall championship at the 2026 Asia Cross Country Rally (AXCR). The event took place entirely within Thailand from 10 to 15 August. This victory marks the second consecutive overall win for a Mitsubishi Triton utilising Yokohama’s GEOLANDAR tyres, adding to previous titles in 2022, 2023 and 2025.

The triumphant vehicle was fielded by Team Mitsubishi Ralliart, with lead driver Katsuhiko Taguchi and co-driver Takahiro Yasui at the helm. After third-place finishes in the opening two legs, the pair surged to the front by clocking the fastest time in Leg 3. They maintained their advantage through Legs 4 and 5, the latter being the pivotal YOKOHAMA RUBBER SS5 stage. A careful, puncture-free drive in the final Leg 6 allowed them to finish 2 minutes and 25 seconds ahead of their nearest rivals, securing their first overall AXCR title.

Five of the first 10 finishers were equipped with GEOLANDAR tyres, including the third-place Isuzu D-Max from the ISUZU SUPHAN TRANE TITANIUM YOKOHAMA NEXZTER RALLY TEAM. The GEOLANDAR CTS Rally Team’s Suzuki JIMNY SIERRA, piloted by the Japanese female duo of Koto Haneda and Momo Tsukishima, achieved 19th place overall, second in the T1G class and victory in the ladies' division.

The GEOLANDAR M/T G003 tyre is engineered for superior off-road performance and durability. The AXCR, an FIA-sanctioned event since 1996, covered approximately 2,000 kilometres from Pattaya to Phitsanulok through mountains, jungles and plantations, further validating the capability of Yokohama’s tyre technology.

Hiroshi Masuoka, Director, Team Mitsubishi Ralliart, said, “Again this year, Team Mitsubishi Ralliart selected Yokohama Rubber’s GEOLANDAR M/T G003 tyres for our Tritons entered in the AXCR. This year, Chayapon’s vehicle was the only one that suffered a tyre puncture. A flat tyre can make it difficult for drivers to attack the course with confidence, which greatly affects the flow of the rally. Amid a very tough battle, I think the Taguchi/Yasui team’s ability to drive stably and complete the rally without a single puncture contributed greatly to their overall championship. The GEOLANDAR M/T G003’s highly stable performance supported that victory at this year’s AXCR.”

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Linglong Tire hosted legendary Brazilian full-back Roberto Carlos at its headquarters in Zhaoyuan from 14 to 16 August 2026. The Real Madrid official ambassador’s visit included high-level meetings with the tyre manufacturer’s senior management, alongside engagements with key clients and commercial partners. His itinerary featured a comprehensive tour of the company’s primary production facility and an in-depth briefing on its smart manufacturing systems.

The former Real Madrid star explored the firm’s research and development centre and evaluated the Sino-Asia test track, recognised as China’s largest and most advanced proving ground. Carlos expressed considerable admiration for the facility’s professionalism and scale, particularly noting the colossal 63-inch off-the-road tyre displayed at the headquarters. His schedule also included a panel discussion with Linglong Chairman Wang Feng and CEO Lingkun ‘Andy’ Zhou.

Linglong Tire has served as Real Madrid’s Global Tire Partner since 2024, a commitment that extends into the 2026/2027 season. The partnership is activated as the nine-time European champions prepare for their La Liga opener against Real Sociedad at the Santiago Bernabeu on 26 August. As part of the agreement, the Linglong brand secures prominent visibility on the stadium’s digital perimeter boards for all domestic league and cup fixtures.

Additional sponsorship benefits include logo placement on partner boards and the official club website, along with VIP hospitality packages. The collaboration also features advertisements in Real Madrid’s digital and print publications, television spots on the club’s official channel and extensive integration into the club’s media activities, solidifying Linglong’s presence within the Spanish giants’ commercial framework.

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