Kumho Tire’s new ultra-high-performance (UHP) tyre, the ECSTA Sport, has been rated ‘Very Good’ in the latest Die Reifentester summer tyre test.

The tyre size used for testing was 225/40R18. Eight tyre manufacturers participated in the test, including well-known names like Goodyear, Bridgestone, Michelin and Continental. Bridgestone and Continental shared the top rating with Kumho's ECSTA Sport. The wet braking results were one of the test's main features. With a stopping distance of only 23.07 metres at 80 kmph, the ECSTA Sport outperformed every other tyre in the test. It was one of just two tyres – the other being the Continental SportContact 7 – to receive the ‘Very Good’ rating in wet handling. In dry weather, the ECSTA Sport also performed admirably. Die Reifentester gave it a ‘Very Good’ grade for dry handling, comparing it to three competitors of premium brands.

Drivers seeking precision handling, robust safety features and high mileage performance are the target market for the ECSTA Sport. The tyre, which comes in sizes 16 to 22 inches, features a new compound blend that improves high-speed stability and reduces stopping distances.

Matthias Bode, Head of Research and Development Europe at Kumho Tire, said, “We are delighted with this result from Die Reifentester. Kumho ECSTA Sport is designed to offer excellent performance for all motorists, including the most demanding drivers, and this test result is an excellent indication that we are on the right course.”

Tony Gangseung Lee, Head of Europe, said, “This test result demonstrates the commitment of Kumho to developing and producing exceptional tyres which offer excellent value to the driving public. I am delighted to see the team’s hard work being so well rewarded in this independent tyre test as we set new performance benchmarks.”

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Bridgestone has initiated a collaborative research project with Universitas Indonesia, Public University Corporation Yokohama City University (Yokohama City University), and Public University Corporation Maebashi Institute of Technology (Maebashi Institute of Technology) focused on the genetic analysis of para rubber trees. The partnership draws on tree samples and genetic data from Bridgestone’s own natural rubber farm in Indonesia, combined with the advanced capabilities of the academic institutions. The primary goal is to develop a marker assisted selection technique that can identify elite trees, characterised by high and stable yields, at an early stage. A formal signing ceremony took place at Universitas Indonesia on 7 April to mark the beginning of this joint effort.

Sustainability is central to Bridgestone’s management philosophy, reflected in its business model that links operations to carbon neutrality, a circular economy and nature positivity across the entire value chain from production to renewal. This research directly supports that vision by aiming to improve the sustainability of natural rubber. Ultimately, the company seeks to contribute to a more circular and regenerative business model where natural rubber production becomes increasingly efficient and environmentally responsible.

A stable supply of natural rubber is essential for tyre manufacturing and safe mobility, yet para rubber trees grow only in narrow equatorial bands and face threats from climate change and disease. With global vehicle ownership rising, demand for natural rubber is increasing, creating pressure to boost productivity without expanding farmland into forests. Bridgestone has therefore pursued multiple technological paths, including disease diagnostics and big data driven planting optimization on limited land. The company also supports smallholder farmers by sharing these technologies and providing training based on know‑how from its own farms, thereby enhancing productivity, improving livelihoods and strengthening the long-term sustainability of natural rubber.

In this specific research initiative, Bridgestone supplies latex samples and existing genetic information from its rubber trees. Universitas Indonesia handles the extraction of DNA and RNA data, while Yokohama City University and Maebashi Institute of Technology perform genetic analyses to pinpoint genes linked to rubber productivity. Together, they will build a marker assisted selection method for rapid, high-precision identification of elite trees, significantly shortening traditional breeding timelines that once took decades. After validating the technology and establishing propagation and nursery systems, Bridgestone plans to replace ordinary trees with elite varieties over the medium to long term, thereby raising productivity and stabilising yields within finite land resources.

Prof Dr Tito Latif Indra, M.Si, Dean of the Faculty of Mathematics and Natural Sciences, Universitas Indonesia, said, "In this project, the Faculty of Mathematics and Natural Sciences, Universitas Indonesia (FMIPA UI), will play a key role in supporting the scientific framework of the project by leveraging its expertise in molecular biology and genetic data acquisition. This collaboration is such an important foundation in strengthening FMIPA UI's academic contribution in impactful global research. Through research in the field of sustainable natural resources, we are trying our best to reinforce the ecosystem of global natural rubber production and provide significant innovation to support sustainable rubber plantations in Indonesia."

Yukihisa Shimada, Director, Kihara Institute for Biological Research, Public University Corporation Yokohama City University, said, "In this project, Yokohama City University will serve as a strategic and technical advisor, supporting collaboration with Indonesian government agencies and the establishment of research infrastructure. Through international collaboration, we will drive high-precision genome analysis and the selection of promising lines, contributing to the creation of scientific knowledge for sustainable resource use."

Kensuke Nakamura, President, Public University Corporation Maebashi Institute of Technology, said, "In this joint research, Maebashi Institute of Technology will lead the bioinformatics analysis, contributing to the advancement of natural resource research through a data-driven approach. As a public university, we are dedicated to fostering both locally grounded research and international research partnerships. By leveraging these strengths, we seek to generate impactful knowledge that will contribute to building a more sustainable society."

Masashi Otsuki, Executive Director, Institute of Advanced Technology, Bridgestone Corporation, said, "By co-creating with stakeholders across the natural rubber industry and promoting the sustainable use of natural rubber, Bridgestone strives to achieve the corporate commitment of ‘Ecology: Committed to advancing sustainable tire technologies and solutions that preserve the environment for future generations’ described in its Bridgestone E8 Commitment.

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Pirelli has created bespoke versions of its P Zero R tyre for the new Audi RS 5 and the RS 3 competition limited, aiming to deliver everyday driving pleasure without sacrificing track capability. Special emphasis is placed on superior grip and shorter braking distances. Drawing on over 25 years of collaboration with Audi Sport, these fitments reflect experience gained from developing tyres for high-performance SUVs and the sportiest sedans.

Audi’s main target was braking performance, and the P Zero R was engineered to approach Pirelli’s semi slick Trofeo R. This results in extremely short stopping distances with rapid deceleration even under demanding conditions. Pirelli’s German R&D centre worked with Milan headquarters on a new compound that performs well even when cold, responding to Audi’s request for safety during deceleration. Though nearing track-oriented products, the P Zero R remains suitable for daily use.

The RS 3 competition limited celebrates 50 years of the five-cylinder engine. Two tyre options are available: the standard P Zero R provides strong grip on dry and wet roads, while the P Zero Trofeo R semi slick is designed mainly for track driving. Its motorsport derived rubber delivers exceptionally high dry grip, stability and short braking distances. Development used digital simulation at both companies, with physical tests later validating data on circuits like the Nürburgring Nordschleife.

The Audi RS 5, the brand’s first high-performance plug-in hybrid, required a new High Load tyre size. Pirelli reinforced the P Zero R’s structure to handle the hybrid components’ extra weight while maintaining driving precision. This partnership, symbolised by the R0 marking, began with the original RS 4 25 years ago and continues with record setting Nürburgring performances in 2024 by the RS 3 with Trofeo R and the RS Q8 performance with P Zero.

Steffen Bamberger, Head of Technical Development at Audi Sport GmbH, said, “The tyre is the only connection between the vehicle and the road surface. Therefore, it plays a significant role in chassis development, especially in our RS models, where excellent handling has paramount importance. Plus, a close, collaborative partnership is essential to achieving this level of performance.”

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TYRESYSTEM, functioning as the digital arm of AZuR partner RSU, has made Tyre Pressure Monitoring System (TPMS) its central pillar of expertise. This unit moves beyond simple product sales by offering specialised training focused on tyre pressure monitoring systems. Their inventory is substantial, featuring over 500 sensors designed to accommodate a wide spectrum of vehicle types, and this hardware is supported by complementary valves, service kits and diagnostic programming tools.

The importance of this focus became legally binding on 1 November 2014, when TPMS became mandatory for cars, motorhomes and off-road vehicles. For workshop operators, a neglected sensor is a serious liability, as it not only creates a safety hazard but also guarantees a failed roadworthiness test like the TÜV. Consequently, the seasonal tyre change has evolved into a critical checkpoint where technicians must rigorously inspect sensor batteries and overall condition to ensure compliance.

To address this industry need, TYRESYSTEM acts as a holistic online wholesaler for tyres, rims and complete wheels. Recognising that hardware alone is insufficient, they established the TyreSystem Academy to deliver practical TPMS training through both online and on-site courses. This educational push helps workshops master modern tyre complexity. Correctly maintained TPMS systems preserve optimal pressure, reduce tread wear and extend tyre life, directly supporting resource conservation and a functioning tyre circular economy within the AZuR network.

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Parcours, a British wheel brand specialising in aerodynamic, wind-tunnel-tested carbon wheelsets for road, gravel and triathlon cycling, has launched the Strade GT, the debut model in its new GT Series. At the heart of this wheelset lies VibraCORE, a technology developed alongside Lineat and Nottingham Trent University. VibraCORE embeds Lineat’s reclaimed aligned carbon fibre material, known as AFFT, directly into the rim’s spoke bed. This structural integration reduces vibration at its source rather than simply damping it after transmission begins.

The principle behind VibraCORE is straightforward: less vibration reaching the rider means less fatigue, allowing for longer, faster rides. Not all vibrations affect the body equally. Certain frequencies are either amplified by the human body or directly contribute to muscle exhaustion. VibraCORE targets these specific ranges, absorbing and dissipating vibrational energy before it travels through the wheelset to the rider. This approach directly addresses the harsh, high-frequency ‘road buzz’ that makes rough roads particularly draining.

In practical testing at standard road tyre pressures, VibraCORE reduces root mean square vibrational energy by an amount equivalent to lowering tyre pressure by roughly 10 to 15 psi. Crucially, this benefit comes without the usual penalties of softer tyres, such as reduced rolling efficiency or compromised handling precision. As a result, the Strade GT delivers a calmer, more controlled ride over long distances while retaining the stiffness, responsiveness and aerodynamic performance expected from a high-end wheelset.

To verify these claims, Parcours partnered again with Nottingham Trent University for controlled real‑world testing across multiple riders and surfaces. Using vibration sensors and frequency domain analysis based on power spectral density, the data showed that rims with VibraCORE reduced vibration energy by 19 to 23 percent compared to identical rims without the technology. This translates directly into a noticeably smoother ride on rough terrain and lower cumulative fatigue over extended rides.

Beyond comfort, the Strade GT represents an evolution of Parcours’ existing Strade platform. Its rim profile is optimised around a 30‑mm tyre, outperforming the previous model by 3.2W at 48 kmph, improving handling stability by 15 percent and achieving a weight of just 1,130g. VibraCORE also enables the use of lightweight Alpina Carbolite carbon spokes. Although sustainability is not the primary goal, the technology incorporates recycled carbon from Lineat’s AFFT process. Parcours is now developing a full circular pathway so that carbon recovered from old wheels, including those from its Crash Replacement Programme, can be reprocessed into VibraCORE components for future wheelsets. In this way, the Strade GT proves that speed and comfort need not be opposing forces.

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