09-19 YAMAHA YFZ450R: Hiper Mud Plug (9") (Clear) HiPer builds the best wheels available in each segment, manufacturing all critical components to assure quality, reliability and on time delivery. HiPer products and materials are targeted to replace any application using heat treated aluminum alloys or laminate composites today.Mud Plug for HiPer Racing Wheels.Keeps mud and debris out of your wheel.Mounts behind the beadlock ring for positive reten