Invisible bikes in Mario Kart parody are really funny

We've seen some Mario Kart parodies in our time, but this one is by far the best. It was created for a Harley-Davidson contest in conjunction with the University of California. The amount of polish on this video causes us to think it took very long to make and therefore deserves to win.

Head past the break to watch the video. Just be careful you aren't sipping anything while you watch it.

[Via 4cr]