Well done, mate!
And to those questioning this, no, no dirt bike (or lawn mower, or pressure washer, or whatever is stored in the garage) is worth this kind of risk. But principle is. Honor is. Some ass hat tries that with me, and it's on.
The very real difference here where I live is that I can confront him while legally armed. I would have absolutely killed the dirty SOB. Yes, "over a dirt bike"...