Part no. RHK-0.3.08 Fitment: Yamaha YZ 125 1989-1992 Yamaha YZ 250 1989-1992 Yamaha WR 250 1991-1996 2T Yamaha WR 500 1992-1993 RHK Filters are designed and manufactured to increase airflow whilst ensuring the ultimate level of protection. RHK Filters consist of an outer layer of coarse open-pore foam which catches large dirt, grime and sand particles. The 2nd inner layer of fine open-pore foam aids in catching minute & finer particles whilst delivering maximum air flow.