The BLACKBIRD Seat Foam RM125-250/05-18, expertly manufactured by BLACK BIRD, is engineered from high-quality polyurethane rigid foam. This seat foam is designed to meet World Championship (WM) standards, ensuring exceptional performance and durability. It is water-repellent, providing resistance against moisture, which extends the lifespan of the seat. This foam is inherently harder, more durable, and lighter compared to the original foam, offering an enhanced riding experience without compromising on comfort. Despite its superior qualities, it retains the original height, ensuring a seamless fit and feel. Ideal for those looking to upgrade their RM125-250 from 2005 to 2018 models, this seat foam represents a significant improvement in both functionality and longevity.