This is a used Rekluse RadiusX auto clutch that fits 2019-2020 kX450F. It was taken out of a 2019 KX450 before the bike was sold. It functioned properly and is ready to be installed. It comes with the original box. The only things missing are 2 crush washers that are for the banjo bolt to attach the hydraulic clutch line to the slave cylinder. They are a one time use item that needs to be changed on a new install. Also missing a rubber band that is used to pull the clutch lever against the handlebars for install. It would be something easy to substitute. Installation instructions can be found online. Feel free to ask any questions you may have or for more pictures