UFO Airbox Cover White for Yamaha YZ 250 F/YZ 450 FX 19-23/YZ 250 FX 19-24/YZ 450 F 18-22/WR 250 F 20-Up/WR 450 F 19-Up S&S® 4" Stroke Flywheel Assembly

S&S® 4" Stroke Flywheel Assembly W/Sprocket Shaft Bearing Race For 2003-'06 Non-Balanced HD® Big Twins (Except 2006 Dyna Models)

• Real world testing and computer simulation also produced a height that will work for most riders

• Large fold over storm flap on front zipper to keep the weather out

• Great handling and quick lean transitions

• Bar and controls can be adjusted without removing stock pins

UFO Airbox Cover White for Yamaha YZ 250 F/YZ 450 FX 19-23/YZ 250 FX 19-24/YZ 450 F 18-22/WR 250 F 20-Up/WR 450 F 19-Up S&S® 4" Stroke Flywheel AssemblyApplications: Yamaha YZ 250 F 2019 2023 WR 250 F 2020 2026 YZ 450 F 2018 2022 WR 450 F 2019 2026 YZ 250 FX 2019 2024 YZ 450 FX 2019 2023