This study addresses the development of low rolling resistance (LRR) light truck tire compounds for electric vehicle (EV) applications using carbon black–rubber coupling agents. Natural rubber (NR)/carbon black (CB) systems, widely used in light truck tires, were evaluated to enhance polymer–filler interactions and reduce hysteresis losses. The effect of coupling agents was examined across different CB grades, polymer combinations, and filler blends. Results show reduced rolling resistance indicators while maintaining mechanical properties and improved energy efficiency for EV light truck tyres.

• Mechanisms for reducing rolling resistance in carbon black coupling agents
• Structure–property relationships between CB grade, polymer blends, and hysteresis behaviour
• Compound design strategies for energy-efficient EV light truck tires