After looking at my previous post I wanted to make mention of the Goped wheels and tires. These are the hard tires found the "Sport" model of Gopeds. Stock Goped wheels are fine but you may want to upgrade to billet wheels like mine. They are available in a wide variety of styles and anodized colors.
Ok, front end finished. If you've gotten this far you've got the necessary skills to complete this project. What we're headed for next is to turn this bike into a "roller". Let's tackle the swingarm.
It may take a little longer but I suggest you make a cardboard template of the swingarm and the rear end "box" section of the Goped. Once you do this, lining things up squarely and getting the angle right will be easy. Tweak it, measure it, look at it. Here's what I'm talking about:
BTW, Old soft drink or beer box cardboard works great. The cardboard is thin, easy to cut and work with.