Mini-bike Mayhem IV: THUNDERDOME! A day of mini-bike, pit bike and Gambler creations on the largest indoor dirt track in Florida. $20 a head to get in & camp Friday, $20 a plate to race. No team size limit. Classes divided by who shows and what they bring. All day heat races Saturday leading up to the main event, so secret I can't tell you about it. It's the Gambler, baby. More vague = more awesome. WTF & ABG!