Bridgestone has used the 2025 Bridgestone World Solar Challenge (BWSC) in Australia as a “mobile laboratory,” showcasing how advanced tire technology can accelerate sustainable mobility. As title sponsor, the Japanese tire giant supplied teams with Enliten tires containing over 65% recycled and renewable materials, including recovered carbon black and recycled steel. These bespoke solar-car tires powered teams to victory in both the Challenger and Cruiser classes while trimming resource use across the entire event.
For BWSC 2025, Bridgestone tightened its sustainability loop from raw materials to recycling. Carbon black recovered via advanced pyrolysis at the Bridgestone Innovation Park was incorporated for the first time, alongside bead wire produced from recycled steel reclaimed from end-of-life tires. The Enliten design was further enhanced with Twaron Next, an aramid material containing circular content supplied by Teijin Aramid.
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Production and logistics also went low-carbon, with DHL’s GoGreen Plus marine-fuel solution cutting up to 85% carbon dioxide across the shipping lifecycle. Improved wear resistance allowed each team to complete the 3,000-km endurance route using fewer tires, just 16 per team versus 24 previously. At the same time, post-event recycling will see used tires repurposed into rubber flooring through an Australian partner, RubberGem.
Enliten , Bridgestone’s base platform for lighter, low-rolling-resistance, long-life tires, was custom-engineered for the extreme demands of solar racing. The combination of low mass, enhanced wear resistance, and reduced rolling resistance helped competitors cover thousands of kilometres efficiently under harsh Australian conditions.
This holistic approach not only reduces environmental impact but demonstrates how innovations validated in motorsport can migrate into mainstream EV and passenger-car tires.
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Teams running Bridgestone Enliten tires in the 2025 World Solar Challenge swept both major categories, marking a third consecutive Challenger Class title (Brunel Solar Team, TU Delft) and a fourth straight Cruiser Class win (VTC Solar Car Team, Hong Kong). Bridgestone also presented its E8 Commitment Award to the Iron Lions Solar Car Team (Greenville High School) for advancing youth engineering excellence.
Bridgestone views BWSC as more than a race, describing it as an open-road R&D platform for circular design, low-carbon logistics and the nurturing of next-generation engineers. The company says lessons learned here will feed directly into future sustainable motorsports and production tires, aligning with its E8 Commitment to “Energy,” “Efficiency” and “Empowerment.”