Good morning all. I am picking my 02 500ho up Saturday and someone took the hub off to try and use it on a different bike but it didnt fit. So they left it hanging on the gear selector. How hard is it to install bearing and put the hub back on? Is the hub also the brake rotor in front? I need to get it reinstalled so I can get the wheel back on and on to my trailer. Any help is appreciated. Also, recommedation for bearing to use?