I made this one a couple years ago, just never got around to posting it anywhere. I designed it, formed all the tubes, welded etc. It has 6 speeds on the right hand brake lever so you can shift and pull 180 degree u turns with ease. The drive shaft is 3/4" Stainless pipe, and the front hub is a custom job as well. I'm looking to sell it, and I have it posted on craigslist also. I've got a couple bikes laying around too that I'll post after I've dusted them off.