Teijin 'circular' aramid for Bridgestone solar car tires
18 Jun 2025

World Solar Challenge features a 3,000km journey across difficult terrain in the Australian outback
Arnhem, The Netherlands – Teijin has highlighted the use of its aramid fibre reinforcement with ‘circular’ content in Bridgestone solar-car tires developed for endurance racing.
Tires incorporating belts reinforced with the Twaron material will support the Teijin-sponsored Brunel Solar Team competing in the 2025 Bridgestone World Solar Challenge.
According to the producer, the material offers the same “strength, thermal stability and low weight as standard Twaron, while supporting our ambition to create a more circular aramid value-chain.”
The tires for the 2025 World Solar Challenge will be based on Bridgestone’s Enliten, building on the use of the light-weighting tire technology in the previous staging of the event.
As well as sustainability, the combined technologies “contribute to the low rolling resistance, durability, lightweight construction, and puncture resistance required for solar car racing,” said Teijin.
Being staged 24-31 Aug, the World Solar Challenge 2025 features a 3,000km journey across difficult terrain in the Australian outback.