first, i want to thank skyl4rk for all his help. it is due to his help that i am at this point. i have done some research and i don't think this topic has been raised. i am considering purchasing a 2 stroke or 4 stroke motor kit for my schwinn frontier mtb. my bike is about 13 years old, but in great shape. anyone with experience with putting a motor on this bike? here is my real question, though. i have a nine month old son. i am thinking that i will either put a baby seat on the front or back or i might pull one of those child carriers/chariots. what do you guys think is the best choice? my first thought was 2 stroke with child seat on back, but during my research on this site i noticed something about 2 strokes smoking quite a bit. my main concern is fumes from the engine. if you have a pic of your motorized bike with a child seat or chariot i would love to see it.