In a candid interaction with Tyre Trends, freelance tyre testing specialist Juuli Raatikainen shares her views on the intricacies of tyre testing, the role of women in the industry, simulation and the road ahead, reports Nilesh Wadhwa.

“Women have been driving cars for decades, so why not be part of the tyre and automotive testing industry? I believe the bigger question and challenge is how the industry (tyre and automotive) can think beyond gender. The tyre testing industry is huge, but there are not many direct studies to learn about it and become part of it,” remarked Juuli Raatikainen, the 28-year-old test driver and mechanic who has been offering freelance services for tyre testing for the last four years.

INITIAL JOURNEY

It is no secret that tyre testing is not a widely known field. A simple internet search for the world’s top 10 racers or motorsport celebrities will return mostly male sports personalities.

For Raatikainen, the journey into tyre testing began as a test assistant in Lapland, Finland.

“I started my career as a test assistant. My passion for testing grew, and I was eager to learn more, working hard to gain knowledge. My efforts were noticed, and I received the necessary support. The decision to start my own company and operate as a freelancer was quite easy for me. In the first two years, I focused on gaining experience, testing time and learning as much as possible. I wanted to see tyre testing from different angles, companies and drivers. Today, I am happy to say that I have experience in tyre testing operations as a tyre mechanic, test assistant, instrumentation specialist and objective test driver. I am also engaged in testing tyres and vehicles for events and magazines,” she shared.

THE EVOLVING ROLE OF TYRE TESTING

Tyre testing has evolved over the years, from physical and mechanical assessments to indoor methods, including Tyre-in-the-Loop (TiL) testing, a form of hardware-in-the-loop (HiL) simulation. However, despite technological advancements, many tests still need to be conducted in real-world conditions to determine optimal solutions.

For example, a vehicle travelling in a sandy environment at a particular tyre pressure will have different braking times even at the same speed. The steering response, traction at different corners and slippage will also vary.

“I find simulators to be a good tool for all drivers and for hardware development. However, no one knows exactly how they will impact testing in the future. Many questions remain, and some conditions and types of tests cannot yet be simulated accurately. As a test driver, my main expertise is in winter testing. From my experience, winter conditions are particularly difficult to replicate artificially. Winter is a living, breathing element of nature, making it hard to forecast, as conditions can change very quickly,” she explained.

For tyre manufacturers, real-world testing is essential for finding the right conditions and weather. For instance, summer tyres cannot be tested in winter, nor can Nordic spike tyres be tested in warm conditions. “It is a challenge for companies to run tyre tests year-round and across different locations. Agility is key,” Raatikainen added.

Tyre testing falls into two main categories: objective and subjective. Objective testing relies on instruments to assess tyre performance, while subjective testing depends on the driver’s evaluation.

“As a freelancer, I work across different processes. Transparency with clients is my priority. It’s about what I do and how I do it. Trust is one of the key values I bring to the table,” she explained.

KEY LEARNINGS & TYRE SAFETY

As a test driver, Raatikainen has firsthand experience of how tyre choices impact performance and safety in different conditions.

“Statistics show that one of the most common mistakes drivers make is using the wrong type of tyres for their environment and weather conditions. When selecting tyres, it’s crucial to consider two key questions: Where will I be driving, and in what weather conditions? These simple considerations can significantly impact safety,” she added.

Most tyres have a wear indicator on the tread to signal when they need replacement, but these warnings are often ignored.

According to data from the Ministry of Road Transport & Highways (MoRTH), India recorded 461,312 road accidents in 2022, resulting in 155,781 fatal cases. Despite tyres having a significant influence on vehicular control, they are rarely cited as a primary cause of accidents.

When replacing tyres, it is also crucial to check their manufacturing date. Raatikainen emphasises that even a ‘new’ tyre must be evaluated based on its production date, as rubber degrades over time, regardless of use.

“Regularly checking tyre condition is just as important as choosing the right type. Ensure tyres have adequate tread depth, are free from cracks or bulges and are properly inflated. These simple maintenance habits can extend tyre life and improve safety,” she added.

FUTURE TRENDS IMPACTING THE TYRE INDUSTRY

New-age vehicles and tightening regulations are pushing industry players towards sustainability and reducing their carbon footprint.

For the tyre industry, environmentally friendly sourcing, production and materials remain key focus areas. From a tester’s perspective, what does the future hold?

“I am excited about advancements in simulation technology and their impact on the tyre industry. Another major trend is the growing emphasis on indoor testing for winter tyres, which addresses unpredictable weather challenges and helps distribute testing workloads more efficiently,” she said.

A third emerging trend is smart tyre technology.

“While modern vehicles are equipped with advanced systems, tyres have yet to integrate similar innovations. The questions of when this technology will arrive, how it will develop and what features it will bring are incredibly exciting. I look forward to seeing how smart tyres will enhance safety, performance and the driving experience,” Raatikainen concluded.

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Bridgestone Americas has appointed Michele Herlein as its new Chief People Officer. In this role, she will oversee all human resources operations across the Americas, Europe, Middle East and Africa. Her primary focus will be advancing the company's Culture 2.0 initiative, which aims to enhance teammate empowerment, collaboration and accountability.

Herlein rejoins Bridgestone with over two decades of executive leadership expertise. Her background includes previous positions within Bridgestone Americas and Bandag, Inc., centred on culture, leadership development and succession planning. Most recently, she was the Founder and CEO of CultureMax and previously served as the Chief Administrative and Human Resource Officer at Barge Design Solutions. She is also a published authority on creating high-performance organisational cultures. Beyond her corporate work, Herlein is a co-founder of Impact100 Nashville, a philanthropic women’s collective that has awarded more than USD 1.2 million in grants to area nonprofits.

Scott Damon, Bridgestone West CEO and Group President of Bridgestone Americas, said, “I am excited to welcome her back to Bridgestone, recognising the perspective and presence she will add to our West leadership team, the HR function and the broader organisation.”

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Alliance, a prominent global tyre brand under Yokohama-ATG, introduced its new Agri Star II Row Crop tyre to the UK agricultural sector during the recent LAMMA UK 2026 event. This launch marked the product's UK debut following its initial presentation at Agritechnica 2025. The tyre is specifically engineered for row crop tractors and specialist machinery, including self-propelled and trailed sprayers, operating in crops such as cereals, maize and oilseed rape.

Central to the tyre's design is Alliance's Stratified Layer Technology (SLT), which incorporates two distinct rubber layers within each lug to maintain reliable traction and stability even as the tyre wears. This approach is part of a design focused on mitigating soil compaction through a wider tread that improves load distribution, thereby helping to protect soil structure and preserve crop yields.

To address the evolving demands of modern farming, the tyre is built for high-speed road travel, boasting an E-speed rating that allows for operational speeds up to 70 kmph. This capability accommodates the increasing distances machinery must cover between fields. Simultaneously, the tyre is engineered to provide effective low-pressure performance during actual field work. It brings VF technology to this segment, a critical development as agricultural equipment continues to grow in both weight and the frequency of road use.

The construction emphasises durability, incorporating features like a stubble guard and advanced, wear-resistant compounds to ensure a long service life under challenging conditions. Available in rim sizes ranging from 24 to 54 inches, the Agri Star II Row Crop is designed for compatibility with a broad spectrum of contemporary farm machinery. This new model extends the proven platform of the Agri Star II series, of which over one million units have been sold globally, delivering its established technological benefits into the specialised realm of row crop agriculture.

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Hankook Tire has appointed Seunghwan (Aaron) Hong as Vice President of Marketing for its North America Headquarters in Nashville. He assumes this position following the promotion of Kyuwang (Ken) Cho, who is now leading the company’s Global Truck & Bus Division from Seoul.

In his new capacity, Hong will be responsible for North American marketing strategy, technical services, Canadian operations and supply chain logistics, focusing on strengthening the brand’s support for regional tyre dealers. Hong’s extensive two-decade career with Hankook includes leadership roles such as Managing Director in Canada and the Netherlands, along with a strategic position in the Global TB sales division.

Cho, who previously served as Senior Vice President of Sales and Marketing in North America, returns to Korea, where he had earlier held a senior global sales role within the TB division.

Rob Williams, President, Hankook Tire America Corp., said, "We're thrilled to welcome Aaron to Nashville as our new Vice President of Marketing. He brings a wealth of global experience and a proven ability to drive growth across diverse markets. As we continue to expand our brand and strengthen relationships with our dealers throughout North America, Aaron's strategic vision will be key to advancing Hankook's innovation and performance in the tyre market. We are appreciative of Ken's leadership over the past year in elevating our presence across both consumer and commercial channels."

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Scandinavian Enviro Systems has appointed Fredrik Aaben as its new Chief Executive Officer effective 16 January 2026. He succeeds Fredrik Emilson, who is stepping down from the role by mutual agreement. Emilson will remain with the company in a supportive capacity, serving as a Senior Advisor during the transitional period.

Aaben brings substantial financial and strategic experience to the position, having served as the company’s Chief Financial Officer since November 2024. His prior career includes close to eight years at Volvo Cars, where he most recently held the position of Head of Corporate Finance and gained extensive experience in finance, strategy and governance. His background also includes roles as Group Business Controller at Stena AB and work in management consulting. Aaben holds dual Master of Science degrees in Industrial Engineering and Management and in Software Engineering from Chalmers University of Technology.

Concurrent with this change, Maria Ljungstrand has been promoted to Chief Financial Officer. She joined Scandinavian Enviro Systems in April 2024 as Head of Group Business Control and previously held business controller positions at Danone and Mondelez International.

The Board of Directors expressed gratitude to outgoing CEO Fredrik Emilson for his dedication and valuable contributions. Under his leadership, the company achieved significant developmental milestones, and the Board acknowledged his considerable efforts and commitment.

Ewa Björling, Chairman of the Board of Scandinavian Enviro Systems AB (publ), said, “The Board is very pleased to appoint Fredrik Aaben as Chief Executive Officer of Scandinavian Enviro Systems. Fredrik has a deep understanding of the company, its operations and strategic direction, and has demonstrated strong leadership, analytical capability and commitment during his time as Chief Financial Officer. With his extensive experience in finance, strategy and corporate governance, the Board has very strong confidence in Fredrik’s ability to lead Enviro forward and successfully drive the company’s continued development and growth.”

Aaben said, “I am excited to have been appointed Chief Executive Officer of Scandinavian Enviro Systems. Enviro is a company with a leading technology platform and a highly competent organisation. I look forward to working closely with the Board, the management team and all employees to drive execution and continue developing the company in line with its long-term ambitions.”

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