This Rear Suspension Arm Set is engineered for the Kyosho Inferno ST-R series of 1/8 scale truggies, providing a direct replacement for damaged or worn-out stock components. Constructed from robust, high-impact composite plastic, these arms are designed to withstand the rigorous demands of off-road racing and bashing, ensuring long-lasting performance and durability. They are a critical component of the vehicle's suspension system, linking the wheel hubs to the chassis and facilitating proper vertical wheel travel and suspension geometry, which is essential for maintaining optimal handling and stability on varied terrain.