Hello, Just call me irefin.I just finished my first motor-bicycle! Found a kit at a yard sale-$50.As far as I can figure it's a BGF-Z80BK.Does this sound right?A used mountain bike(6speed)$40,real clean.With a little welding help,and some patiance it all came together.I'm really impressed how well it moves my 225lbs.and handles.I do believe the brakes need upgrading.Any suggestions?This forum sure made my project a lot simpler.Thanks irefin.BTW-Being a furniture refinisher demanded the use of wooden engine spacers,they work great.