hi i am interested in building a cheap 2 stroke bike from a kit and an old bike. the problem i think i am going to have is my bike has square tube for the upper half of the frame and the lower is square that leads into round... a specialized frame. so my question is has anyone ever made a rear rack mount for those chain drive, clutched, 50cc kits? or am i better off buying a cruiser from wally world and going frame mount