For anyone who hasn't seen this, I won't spoil the ending. I'm sure a lot of you are familiar with the race and might have even seen this well produced video before. Anyways, even if you're not a motorcycle guy/girl, this is some of the most exciting racing I've ever seen. Action is all packed in to the first ~2 minutes, but I bet you'll stick around for the remaining sound bytes.
This is Valentino Rossi and Jorge Lorenzo duking it out in the final laps of Catalunya 2009 and it is spectacular: