Amazing!
Now, I don't review often, and I hadn't planned to either. But your flash in this case, is one of the best things i've seen, forcing me to review. XD
You have excellent animation skills, good timing, GREAT style, and you basically have the perfect music/tune for this type of series. Very energetic! The only odd/problem in this entire flash, was that the wheel on one of the bikes that were racing wasn't moving. But big deal... -_-;;
Congrats on such a successful flash. I've added this submission to my favorites, and I will be eagerly awaiting your next submission. ^^