Wow, my moped now has enough miles on the new piston and sleeve that I feel comfortable pushing it. I had my girlfriend follow me and I was doing an easy 35+ mph with more to go using stock gearing. That has been my goal all along. 40 mph next! I'm going to get a smaller rear gear and a new belt as well as better rear shocks. Again, I'm interested in comfort and utility over speed. This town has only a few streets with 35 or 40 mph speed limits and plenty of cops ready to give tickets.