So far I'm liking what I have found in this forum. I'm loving all the links. The forum itself is giving me ideas and helping with some questions. I just finished my first motorized bike about a month ago but learned the hard way not to use a cheap/weak frame. I only got ride it for less than two weeks before the top tube broke away from the head tube, luckily I didn't wreck! I have a new raw frame on the way to start over. Also one of the studs on the tank that came with the kit cracked and is leaking, I'm in the process of building a custom tank. I'm not sure how long I should take to break it in? Before the frame broke it seemed like the engine was starting to act up a bit. As I would take off all was well til about half way through it's power range and then it would start to vibrate really bad for a bit and then go away. Any clues? I look forward to being a part of the motorized network.