Okay, so I like swingbikes... I built a 16 for my kids in about an hour to see if they could ride it. It worked pretty good so I spent a little time to build a better one. I was curious to see how well it would sell. It went on ebay for more than twice what I hoped to get,so I started another one that will be even better. I am just not sure if I want to sell it when I'm done or keep it for the kids. Here are the pics so far. 1 hour test bike. This is the one I put on ebay. It had over 30 people watching it. Here is the new on so far. I have a 20"springer and some other parts on the way from Fast Eddie.