By Sharad Matade

As part of its sustainability efforts, Continental aims at using at least ten percent of natural rubber derived from Russian dandelion roots in its tyre and industrial rubber goods production in future.

“We have undertaken a huge research task to meet ten percent of our requirement of natural rubber from dandelion roots. It is a long-term process,” Dr Carla Recker, Head of Expertfield Materials Chemistry & Taraxagum, told Tyre Trends in an interview. “It will take decades to complement natural rubber from Hevea brasiliensis with natural rubber from dandelion plants at an industrialised level. However, the company does not intend to replace NR from Hevea brasiliensis trees.”

According to Dr Carsten Venz, Site Manager at Taraxagum Lab Anklam, “Dandelion will be an additional source of natural rubber, not a replacement to rubber trees, in the coming years.”

Continental has been consequent on the cultivation and processing of Russian dandelion as an alternative source of raw material to the rubber tree in the tropics. Last year, the company officially opened its research and test laboratory named Taraxagum Lab Anklam in Anklam, Germany, a base for its future research into the cultivation and processing of Russian dandelion, within a year after the ground-breaking ceremony held in November 2017.

“The Taraxagum Lab Anklam is the latest key milestone of our project,” said Dr Recker.

The Taraxagum project is crucial for the company. “The natural rubber from dandelion is important to develop a new alternative and sustainable supply of the raw material” Dr Venz said.

On bicycle tyres

Though the lab was opened last year, Continental started working on the dandelion rubber project in 2011, and the company has already used rubber from dandelion roots in its passenger car tyres, truck tyres and industrial rubber goods. “The latest development on production-side is that we have industrialised bicycle tyres with rubber derived from dandelions. So, you can now buy bicycle tyres of Continental made of dandelion rubber in the market,” Dr Recker said. Continental showcased its first bicycle tyre with dandelion rubber at the Tour de France this year.

Currently, the Taraxagum lab is working on dandelion research, and over the next five to ten years, it will focus on the industrialisation of dandelion rubber and increase the share for the dandelion rubber in its products.

“Continental sees the Russian dandelion as one element of our commitment for sustainable natural rubber as detailed in our Sustainable Natural Rubber Sourcing Policy published in October 2018. At least for us, the Russian dandelion is the most promising alternative source for natural rubber. There might be different sources (to get natural rubber), but that does not fit for us. The Russian dandelion can be grown in different climate zones unlike natural rubber from heave brasiliensis trees which need tropical climates to grow. Rubber trees and the Russian dandelion have the same characteristics, the same chemical structure and the same properties. It is just two plants producing the same material,” says Dr Recker. The advantage of dandelion rubber over rubber from trees is that the former has a generation succession of just three months as compared to seven years for the latter.

Since the dandelion plants can be cultivated in Northern and Western Europe, which makes transportation routes to the European production sites much shorter and contributes to the sustainable use of existing resources, thinks Continental.

However, the major challenge will be the 100 percent replacement of rubber made from trees with dandelion rubber. Dr Recker thinks, yes, technically, dandelion can replace tree rubber by 100 percent, but the more significant challenge will be the industrialisation of dandelion rubber to the level of rubber trees. “We are at a research stage. The amount of dandelion available globally is not enough to replace natural rubber commercially. To create that biological system to industrialise the natural rubber from the dandelion will take some time and we will have to be more patient,” says Dr Recker.

Research is a time and capital consuming task. Synthetic rubber is also coming into tyre production in a more significant way, but the crude oil derived commodity has historically been volatile, and even oil-producing nations are diversifying their businesses citing falling productions and growing focus on cleaner options.

Dandelion rubber is not new to the tyre industry; however, the industry does not seem much keen on dandelion plants as an alternative source for natural rubber. “Not everybody (tyre company) is willing to invest in the early research of dandelion rubber and setting up the entire bio-economy. You have to establish a full value chain from breeding to the production of natural rubber from dandelion plants, which is does not exist yet and not every market player is willing to invest in such a long-term process,” explains Dr Recker.

Since Continental sees dandelion a sustaining resource for natural rubber in the future, it has made a substantial investment for the project. It has already poured in 35 million euros for the project. “Though many of our peers are investing in other resources to get natural rubber, I think we are quite unique investing like the way we are to explore alternative resources for natural rubber,” says Dr Venz.

Over 90 percent of natural rubber derives from South East Asia, a tropical region suitable for natural rubber trees. However, erratic climate behaviour is hitting production of natural rubber in this region. Natural rubber producers are also exploring other areas to grow natural rubber trees. According to Dr Recker, the research project has yet to ascertain the survival scope of the Russian dandelion in changing climates. “I believe that Dandelion will grow in all climate zones,” says Dr Recker.

Yield ratio

As of now, Continental also does not have comparable yield ratios between natural rubber from dandelion and hevea brasiliensis. “We are working on determining the output of natural rubber per acre from both resources,” says Dr Venz. “Usually, between 1 and 1.8 ton per hectare per year is produced from rubber trees, and around the same amount of production per hectare we are expecting from dandelion plants,” estimates Dr Recker.

As part of the value chain creation, the company is focusing on breeding for seed production and harvesting, root production and harvesting, and the extraction process. According to the company, growers also need some time to understand and get hands-on to harvest dandelion plants. Every year climate conditions will determine a different impact on the plants. “We will need to see how the crops will react in different climate and harvesting seasons. We are building a network of farmers in North East Germany from whom we learn and whom we can teach what we have learned,” added Dr Recker.

Fundamental design and development of tires for the mobility of the future will be unchanged; however, tires will be expected to be high performance and eco-friendly. According to Continental executives, for the mobility of the future, natural rubber will remain the core ingredient and dandelion will be one of the sustainable options to provide natural rubber. “Rubber be will be used in future to make high-performance tires, and we are exploring the option to have a sustainable source for natural rubber,” adds Dr Recker.

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The AZuR project group on chemical recycling has published a comprehensive glossary to establish clear and consistent terminology in the field of used tyre processing. This resource aims to support a common understanding among industry professionals, scientists, politicians and the media by defining key technical terms and explaining complex processes transparently.

The glossary was compiled by Claus Lamer and Robert Weibold (both of Robert Weibold GmbH), along with Dr Ann-Kathrin Andresen (ING.-UP). It covers essential concepts related to chemical tyre recycling, such as pyrolysis and devulcanization, while also including other relevant recycling methods for context.

Pyrolysis, a central process in chemical recycling, involves the thermochemical decomposition of shredded tyres at high temperatures without oxygen. This process yields valuable outputs like pyrolysis oil, gas and recovered carbon black. The generated gas can be used to power the plant, making the process highly energy efficient. Devulcanisation is another technique highlighted, as it allows vulcanised rubber to be reprocessed into a usable secondary raw material.

These advanced recycling methods are crucial for advancing a sustainable tyre circular economy. They provide a climate-friendly alternative to landfills or incineration for tyres that are no longer suitable for repair or retreading. By transforming end-of-life tyres into valuable secondary raw materials, chemical recycling keeps resources in circulation and reduces reliance on fossil fuels.

With this glossary, the AZuR project group provides a foundational technical reference to guide future discussion and development. It encourages a balanced assessment of the opportunities and limitations of these technologies, promoting innovation that supports a fully functional circular economy.

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The DUNLOP BLUE RESPONSE TG summer tyre has earned the highest possible distinction, receiving an ‘Outstanding’ overall rating from Auto Motor und Sport, a premier German automotive publication with significant influence across the European market. This top-tier performance was secured during the magazine's latest comparative assessment, where eight competing summer tyres, all sized 195/55 R16, were subjected to rigorous evaluation. The newly launched DUNLOP model emerged as the definitive leader.

Having been formally introduced to the European press and consumers just this week in Seville, the DUNLOP BLUE RESPONSE TG represents a significant milestone as the first DUNLOP tyre manufactured by Sumitomo Rubber Industries. Its debut in a major market test has already yielded remarkable results. The tyre's evaluation revealed superior performance across all measured categories. In wet condition assessments, it achieved scores approaching a perfect 10 in nearly every test. Its innovative tread design proved highly effective, excelling in critical areas such as braking distance, lateral grip and resistance to longitudinal aquaplaning.

This excellence was matched during dry handling trials, where the tyre demonstrated remarkably balanced and dynamic capabilities. It accumulated three flawless scores of 10 and an additional three scores of nine, underscoring its exceptional precision and the heightened safety it provides. Notably high marks were awarded for its braking performance, responsive handling characteristics and sustained consistency. Testers universally praised its superior grip on both wet and dry surfaces, its precise and agile steering feedback and its dependable behaviour during lane changes, highlighting a safe and forgiving performance envelope. As the sole tyre in the test to achieve the ‘Outstanding’ rating, the DUNLOP BLUE RESPONSE TG established a commanding lead in the final classification.

Markus Bögner, Managing Director and President, DUNLOP Tyre Europe GmbH, said, “We are proud that the first DUNLOP tyre of our own design leads the competition from the outset. This test victory clearly confirms our ambitions and shows that DUNLOP’s return to the premium segment was the right strategic decision. The DUNLOP BLUE RESPONSE TG sends a strong signal about where the brand is headed.”

Full scores for DUNLOP BLUE RESPONSE TG:

Wet braking distance:                                  10/10
Wet lateral grip:                                           10/10
Wet handling (measured):                            10/10
Wet handling (subjective):                            10/10
Wet longitudinal aquaplaning:                     10/10
Wet lateral aquaplaning:                                9/10
Dry braking distance:                                  10/10
Dry lane change safety (subjective):              9/10
Dry steering response (subjective):               9/10
Dry handling (measured):                           10/10
Dry handling (subjective):                           10/10
Dry rolling comfort (subjective):                   9/10
Rolling resistance:                                        6/10
Road noise:                                                10/10
Overall rating:                                          9.6/10

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Hankook Tire has confirmed the 2026 season of the Lamborghini Super Trofeo series will commence with its opening round in Florida from 18 to 20 March 2026. As the exclusive tyre supplier for this international championship organised by Italian supercar manufacturer Automobili Lamborghini S.p.A., Hankook will equip all competing Huracán Super Trofeo EVO2 cars with its ultra-high-performance Ventus racing tyre. This partnership, established in 2023, continues to see the Ventus tyre support Lamborghini vehicles under extreme conditions, withstanding speeds approaching 300 kmph while delivering exceptional grip, handling and durability across varied global climates.

The opening event, part of the North American series, is set to take place at the challenging Sebring International Raceway. This 6.0-kilometre circuit, constructed on the grounds of Hendricks Field Airport, presents unique difficulties with its combination of dedicated racetrack sections, airport runways and taxiways. The track surface itself adds another layer of complexity; concrete sections in particular place immense stress on tyres and become notably slippery when wet. Furthermore, the intense Florida sun can dramatically elevate track temperatures, making strategic tyre management a critical factor that could very well decide the race's outcome.

Despite these demanding conditions, the Ventus tyre is expected to perform reliably, showcasing Hankook’s advanced motorsports technology. Its robust construction provides the necessary heat resistance and stability for high-speed racing, reinforcing the global premium status of the Hankook brand through this strong collaboration with Lamborghini.

The 2026 Lamborghini Super Trofeo season will feature three continental series spanning North America, Europe and Asia, encompassing 10 countries and six rounds each. A key highlight for local fans is Round 4 of the Asia series, scheduled for 17 to 19 July 2026 at Inje Speedium in Gangwon Province. Following the conclusion of the regional championships, the top competitors will gather in Italy for the Grand Final from 24 to 25 October, where the ultimate world champion will be crowned.

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The Bridgestone Potenza Sport EVO, incorporating ENLITEN Technology, secured the top position in the 2026 summer tyre test conducted by sport auto magazine. Evaluated in size 205/45R17 on a Mazda MX-5, it emerged as the clear leader among seven competing tyres. It was the sole tyre to earn the prestigious ‘outstanding’ rating, achieving 9.2 points for its overall performance.

The testers commended the Potenza Sport EVO for its remarkably balanced capabilities. They characterised it as a tyre combining high safety with an exhilarating driving experience, declaring it their definitive top choice. The evaluation noted the tyre's abundant grip and precise handling during challenging manoeuvres. The experts described it as a highly responsive tyre with substantial grip in reserve on both wet and dry roads while praising its fine controllability through load variations.

Its proficiency in wet conditions was a significant highlight, demonstrated by short braking distances, tenacious cornering grip and robust safety margins against aquaplaning. Developed from the multi-award-winning Potenza Sport, this new model elevates sports performance, wet control, durability and efficiency. Available from January 2026, the tyre ensures precise control at high velocities, preserving vehicle composure. It attains a top-tier EU label A-grade for wet grip, and compared to its predecessor, it reduces wet braking distances by five percent and dry braking by two percent.

These advancements are complemented by superior longevity, with a 15 percent mileage increase, translating to roughly 6,000 extra kilometres. Furthermore, it enhances fuel economy and boosts electric vehicle range through a rolling resistance reduction of up to six percent.

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