MOPED ARMY

Go to Handybikes.com. Find, search, do whatever it takes to find sprockets that start with "z=" or "Z-" You'd want a Z=26, Z-28, etc. If you can't find one, then any tomos rear sprocket will work with 10 minutes of filing the bolt holes out about a quarter inch (works, won't break and isn't hard to do with a good thin file.)

I have some sprockets as well, may or may not need modified. $10 shipped, email if needed.