Hello, I'm in need of some help. I've recently bought a second hand Z800 Ex. It drove down the road fine and performed well for a few hours offroad. I went to take it out for a spin today and about 100 metres off the road the rear right wheel fell off. It appears as if the central nut actually unwound itself. This ruined the break disck, pad and calipers and also appears to have ruined the thread on the CV joint. I have some questions I hope you can help me with. Firstly, are the rear wheels meant to have a split pin or something? How far is the locking nut meant to go back on the CV joint thread? As on both rear wheels there were no holes for split pins, the locking nut hardlly had any bite on it when fully tightened and the left wheel almost came off as well. Does anyone know where I can get replacement CV joints? My mate has an old CF moto X8 I can cannibalise for spares. Do you know if the parts are all the same? Thanks very much, Dan.