Ok, I've made up my mind on what minibikes I'm getting my sons for Christmas. I'm picking up one db30 in the morning after work. I have a stock predator in the box to put on it. I'm going to order the engine adapter for it and get the sprocket adapter for it and run a 53t on it with a tav. I figure it will cut down on wheelies and run good on topend with that setup while the governor is still on it. It will have a bored carb, air filter, and header on it as soon as I put the motor on it. I'm looking at the cheap tav on OldMiniBikes for it and wanting to know exactly what I need to do for it to fit on this db30 with a 6.5 predator. I'm going to build two bikes just alike for my sons that weigh 80lbs, and they'll be running these at the strip after they get the hang of them.