The Yokohama Rubber has developed a proprietary system that utilises AI to predict the physical properties of rubber compounds. The system is already being used to design rubber compounds for Yokohama tyres. The company is expecting the system’s ability to conduct a large number of virtual experiments will enable it to accelerate compound development, reduce development costs, and develop better performing products. The system also will make it easier for less-experienced engineers to create new compounds.

The system was developed under Yokohama’s new AI utilisation concept, HAICoLab, which was launched in October 2020. The system uses AI to predict a rubber compound’s physical properties based on the rubber compound design parameters input by an engineer. In addition, to facilitate engineers’ ability to confirm predicted results, the system includes a function that displays the certainty of predicted physical properties and one that searches for a compound composition that will achieve physical properties closest to the targeted ones. The new system enables collaborations between humans and AI that will lead to the acquisition of new knowledge. Going forward, Yokohama Rubber will expand the use of this new system for developing rubber compounds for use in tyres to a wide range of the company’s other products, including hoses and conveyor belts.

HAICoLab is an acronym for “Humans and AI ColLaborate” for digital innovation. It also has the meaning of a laboratory for joint research by humans and AI. The new concept aims at fostering digital innovations by facilitating collaborative efforts that merge human inspiration and creativity with the enormous data processing capability of AI. Yokohama aims to acquire new knowledge by creating and collecting data based on hypothetical conditions set by humans and then applying AI to predict, analyze and then search for the most optimal result. Yokohama Rubber has been advancing technological developments by using AI in its material and tire design and development processes. For example, in 2017 Yokohama Rubber unveiled a new rubber material development technology that applies materials informatics and a tyre design technology that applies informatics technology. Under its new HAICoLab concept, Yokohama Rubber is now using AI to develop innovative products and services as well as processes. Through this effort, Yokohama Rubber will contribute to the realisation of “Society 5.0,” a future society that will enhance people’s experiences and take advantage of innovative technologies such as AI and IoT, as advocated by the Japanese government’s Cabinet Office.

Wider range of AI utilisation

Tyre Trends spoke with Dr Eng. Masataka Koishi, Executive Fellow, Head of AI Laboratory, The Yokohama Rubber Co.,Ltd, for more details on the new development.

What led to the development of HAICoLab concept? Will this be extended to other areas of R&D?

We have been pursuing a number of AI initiatives, but they are limited to certain areas. Moving forward, our desire to use AI in a wide range of fields led us to create HAICoLab as a framework to support more widespread use of AI in the future.

In addition to serving as the foundation of our future future efforts, I think it will also help communicate Yokohama Rubber’s stance on AI utilisation.

We believe that people will play the key role in achieving digital innovation, which will be achieved by applying AI to real and virtual data that is based on hypothesis setting that is derived from human inspiration and eliminates cognitive bias. This collaboration between humans and AI is what we are calling HAICoLab.

Prior to formulating HAICoLab, we were proceeding with technological developments using AI in our material and tyre design and development processes. In 2017 we announced a rubber material development technology that applies materials informatics and a tyre design technology that uses informatics technology. We are now working on the structures, materials, and production areas that will lead to innovative processes (design development) and products.

Developments in other areas are not yet at a stage where we can make any concrete public announcements.

Please comment on the R&D team. Is Yokohama working in association with any University, Research Institute etc?

We are applying the results of research conducted with universities and research institutes in Japan and overseas in our development of materials informatics and tyre design technology using informatics as well as to HAICoLab. Meanwhile, our effort to generate virtual data through simulations and analyse that data using machine learning is being carried out on supercomputers available through Japan’s High Performance Computing Infrastructure (HPCI) as well as our own supercomputers.

How is Yokohama proceeding to adopt AI in other areas of tyre development?

Similar to our effort with compounds, we are now making preparations for the use of AI when considering tyre design specifications. However, we are not yet at the stage where we can say anything more specific.

While developing new concepts, is Yokohama focusing on new innovations in the automotive sector? Kindly comment in detail

We believe that the tyres of the future will need to respond to the trends towards the application of CASE and IoT technologies in automobiles. Accordingly, we are developing new technologies that will accommodate CASE. For example, as previously announced at a press conference at the 46th Tokyo Motor Show held in 2019, in the CASE domain of connectivity we are conducting joint research and development with Alps Alpine with a view to creating a solution business that will supplement our existing tire air pressure detection sensor with the ability to detect tread wear and road-surface conditions and then use digital tools to process and manage the acquired data.

In addition, this February we announced our SensorTire Technology Vision, a medium- and long-term vision for developing new technologies for passenger car tyre sensors. By implementing this Vision, we aim to support people’s mobility and contribute to the safe and secure operation of motor vehicles while addressing the changes in mobility demand by providing data obtained from SensorTires (IoT tyres) fitted with sensing functions to drivers and businesses providing various automobile-related services.

Looking further into the future, we plan to connect this data collected by our SensorTires with map data and road traffic related information (traffic jams, weather conditions, etc.) to provide value-added information, such as proposals for safe driving routes, that will contribute to the safe operation of autonomous-drive vehicles as well as the operations of companies engaged in MaaS-related businesses. By anticipating the various changed being brought about by electrification of the automobile and quickly and appropriately expanding our product lineup, we hope to secure a dominant position in the evolving tire market. (TT)

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Dunlop Motorcycle Europe is celebrating a successful conclusion to the 2026 Campeonato de España de Superbike (ESBK) campaign, with five of its equipped riders securing titles at the Sunday finale at Circuito de Jerez Ángel Nieto. The brand claimed five of the series' eight championships, four of them in open-tyre competition classes, after a tightly contested season spanning Spain and Portugal.

The ESBK's open-tyre rules in several classes give Dunlop a direct benchmark against competing manufacturers. The company backed riders throughout the year in Superbike, Supersport, Supersport 300, Superstock 600, Superstock 1000 and Pre-Talent. Four of those classes allow any tyre brand, while Dunlop is the sole supplier for Supersport 300 and Pre-Talent.

The Superbike, Superstock 600 and Pre-Talent crowns all remained undecided going into Jerez. Honda Laglisse's Javier Palomera clinched Superbike ahead of Dunlop-backed Ivo Lopes of BMW Easyrace Team, runner-up in the open-tyre class; the same squad also took Superstock 1000 through Mauro González. José Luis Armario won the last Superstock 600 race of the year, and in Supersport, Team Speed Racing's Marcos Ludeña placed second with Team Honda Laglisse's Yeray Ruiz third, giving Dunlop two of three open-tyre podium slots. In the Dunlop-only classes, Marc Vich took Supersport 300 and the Kawasaki Ninja Spirit Trophy, while Marcos Vinagre won Pre-Talent at Jerez, leading an all-Dunlop podium alongside Javier Vigueras and Jose Luis Cagigas.

Dunlop's ESBK programme uses its KR racing slick line, covering both development and catalogue specifications, with wet tyres also available. Data from real race weekends helps the brand validate new products before they reach other championships and track-day use. Dunlop's racing footprint also takes in the Campionato Italiano Velocità, which produced six more Dunlop champions in 2026, and the FIM Endurance World Championship, where a fresh multi-year deal makes Dunlop the sole supplier to the Superstock and Production Trophy classes.

Roberto Finetti, Marketing Manager, Dunlop Motorcycle Europe, said, “It's great to see Dunlop-equipped riders achieve such strong results in the 2026 ESBK season, with championship titles secured across multiple categories and two all-Dunlop podiums in Supersport 300 and Pre-Talent. We're incredibly proud of what our riders and teams have achieved this season and of the role Dunlop has played in their success. These results are a testament to their dedication and hard work throughout the year. Congratulations to all the newly crowned champions.”

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Tegeta Green Planet, in partnership with the United Nations Development Programme (UNDP), organised an information and practical campaign titled ‘Don’t Throw It Away, Hand It In’ in Poti. Held on 29 October at a Tegeta Motors branch, the initiative sought to strengthen environmental responsibility and promote proper management of specific waste streams.

The campaign targeted local residents, vehicle owners, drivers and private sector representatives, encouraging their active involvement in waste management. Attendees learned about the environmental impact of automotive waste and correct disposal methods. A dedicated collection point at the branch allowed residents to hand in end-of-life tyres, used batteries and waste oils, offering a practical way to contribute to environmental protection through everyday actions.

A significant focus was placed on raising awareness about the Extended Producer Responsibility (EPR) system, including the role of EPR organisations, collection and subsequent management of specific waste streams and importers’ legally established obligations. Symbolic gifts encouraged participation. Tegeta Green Planet and UNDP continue to implement regional environmental campaigns and educational initiatives aimed at raising public awareness, fostering responsible waste management and promoting circular economy principles.

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Bridgestone’s Potenza Sport EVO has earned two independent test accolades, strengthening the tyre maker’s standing in the ultra-high-performance segment. The double success spans a victory in What Car?’s summer tyre test and a Recommended award from evo.

In What Car?’s evaluation of 11 summer tyres, the Potenza Sport EVO ranked first. Fitted to a Volvo XC60, it drew praise for predictable handling and secure performance in wet and dry conditions, along with communicative steering suited to a premium performance tyre.

The What Car? results also underscored tyre choice’s safety implications. In wet braking, the Bridgestone stopped 7.3 metres shorter than the Goodride competitor. The publication concluded that the Potenza Sport EVO justified its higher price, highlighting the value of investing in quality tyres.

The evo test delivered further recognition. The Potenza Sport EVO finished second overall but secured the Recommended award and was arguably the standout performer across individual disciplines, taking five first-place finishes. It earned top subjective ratings for polished, effortless behaviour, excelled in wet grip, traction and stability and set the fastest handling-course time, becoming the only tyre to break 51 seconds.

Drew Chapman, Consumer Sales Director, Bridgestone UK, said, "To achieve such outstanding results in two highly respected independent tyre tests is a fantastic endorsement of the Potenza Sport EVO and the engineering that has gone into its development. Winning the What Car? test against 10 other competitors, while also securing evo's Recommended Award and five individual test victories, demonstrates the tyre's exceptional breadth of capability. These results reflect exactly what we set out to achieve with the Potenza Sport EVO; delivering outstanding performance, control and confidence in a wide range of driving conditions. It's hugely rewarding to see that recognised by independent experts."

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Citira, a Sweden-based company specialising in circular tyre management, has expanded its UK commercial service network by acquiring G & S Tyres Ltd, a move that also brings a modern retreading facility in the London metropolitan area into the group. The deal advances Citira's push towards a national UK footprint, building on its recent purchase of Redpath Tyres in Scotland and its entry into UK market earlier this year via Tyrefix Group.

G&S's local knowledge, solid reputation and retreading strengths align closely with Citira's circular tyre management model, which covers retreading, rim refurbishment and fleet logistics and is already well established across the Nordics and Poland. The East London site is strategically positioned and employs around 45 people.

A two-generation family firm with more than four decades of service to UK customers, G&S will keep trading under its own name with its existing team. Gary, James and Billy Short will stay involved in the business and take shareholdings in the Citira Group.

Oliver Johnson, Head of UK at Citira, said, “G&S Tyres has earned a strong reputation across the UK through its reliability, service quality and close relationships with the fleets and customers it supports. That reputation provides an excellent foundation for the next stage of growth. Following our acquisition of Redpath Tyres in Scotland, G&S is a further step in our ambition to build a national commercial tyre service network with the best people and businesses in the UK.”

Gary Short, speaking on behalf of the Short family, said, “We are very happy to join a group whose ambitions for the UK align so well with our own. Citira is a great home for G&S and gives us the right platform to support the next generation, spearheaded by James and Billy, as they continue to grow and improve the business.”

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