i was tring to post a reply but i will do it here , i am in south miam, i cant find any bike shops that cater to motorizied bikes (gas), i am still trying to find out what the law is before i buy a motor ,every one i talk to tells me something different, i am using the 49cc as the exemple, the last bit of information i came up with is you can only drive it on private property, that will be with no lights or any thing , i am assuming this , if i and mean if, can title it, get a tag ,put lights on it then i can drive it in the street, i am still checking, i see very few if any gas powered bikes here i have red different posts , i am not geting an answer, i will keep tring thanks