Dirt Biking

I was just kind thinking as I am kinda bored right now;

How many people ride dirt bikes here? Do you do it as a sport?

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I have a friend that rides his bike a lot I know he would love to get into riding dirt bikes as a sport. This isn't to big a sport right now, but its sure starting to pick up over here at the states..

I have seen tracks starting to open up around where I live.. I know lots of people over where i live ride dirt bikes but I'm not to sure how the tracks are going to do.. But I know i will start riding my RC car over there if the dirt bikers dont like the track

I use to ride quads over at the beach, do a couple small jumps nothing big. But I use to ride with 2 of my friends who owned dirt bikes and used to have goes of them, they're pretty fun. Haven't done it in a while and really want to again.