Hello I am 14 years old and I have been interested in motorized bikes for some time now. Now that I have sufficient funds, I am eager to get started on my first project. I am going to be using it for all kinds of travel, from 5- 10 mile trips, to distances of up to 30 miles. My ideal setup would be a good single speed bike with a four stroke motor. My only questions for now are what bike and motor do you recommend for a beginner?