I test rode the Nel Lusso; it is a very solid bike for Walmart bikes. I mean it really depends on your engine setup; both will fit a 2-stroke and 4-stroke (though you might have to cut that small bar below the top bar; it has been done).The Nel Lusso has an attached rear rack, which I love for putting another gas tank on and is solid; however, if you are going a friction drive build obviously that is going to be an issue. You would want to add front brakes since it might be hard to stop with your weight, bike, and engine with only a coaster brake.