Hi guys, l am new to the site so not sure if you will be able to help me. I have a Mk 1 Santa Cruz Cameleon which I have rebuilt after spraying. I used the bike for a short time before passing it onto my nephew. He is now experiencing the following problem, after a few days the rear wheel moves and the tyre rubs the frame. The rear stay is the slotted type and no matter how tight he tightens the skewer it still twists. I got him to change the skewer to a bolt type too see if that would cure the problem. Still the same !!!!! Is there anyone else who has experienced this problem and if so can you please advise me on how to sort it out, or do l need to purchase a part to lock the wheel in place. K