hey guys, might sound stupid or what ever, but my rear tyres both popped at the same time...(no burnouts what so ever) must have ran over something. Anyways, being tubeless I thought I would take them both off and take down to beau repairs...so they can patch em up for me just untill I get time to get new pair. As I jacked the car up, I took 4 lock nuts off......the 5th one seemed not to come off, as I looked closer it was all craved up and it had some patterned shape over it...as if it is meant to be undone with a special key, there is one on each wheel. I don't know if this is some way of preventing theft or what ever, but I was not supplied with a bloody weird key!!!!! any ideas? regards, dragz