APPLICATIONS OF THIS PRODUCT: According to the data provided by the manufacturer, this article is compatible with the following brands, models and years: GAS GAS EC 450 F 2013-2015 YAMAHA WR 450 F (CJ19;RE45) 2016-2017 YAMAHA WR 450 F (RE45) 2018-2018 YAMAHA YZ 450 F (CJ15) 2011-2013 YAMAHA YZ 450 F (CJ18) 2014-2015 YAMAHA YZ 450 F (CJ21) 2016-2017 YAMAHA YZ 450 F (CJ22) 2018-2018 YAMAHA YZ 450 F (CJ23) 2019-2019