Part no. RHK-0.3.30 Fitment: Yamaha WR 250 1997-1998 2T Yamaha WR 250F 2001-2002 Yamaha WR 400F 1998-2000 Yamaha WR426 2001-2002 Yamaha YZ 125 1996-2021 Yamaha YZ 125X 2017-2022 Yamaha YZ 250 1997-2021 Yamaha YZ 250X 2016-2019 Yamaha YZ 250F 2001-2013 Yamaha YZ 400F 1998-1999 Yamaha YZ 426 2000-2002 Yamaha YZ 450F 2003-2009 Suzuki RM 125 2004-2011 Suzuki RM 250 2003-2012 Suzuki RMZ 250 2007-2018 Suzuki RMZ 450 2005-2017 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.