Ceramic coating increases performance over larger cylinder kits due to temp. Keeping the air cooled engine cool is a sure fire way to keep performance at a top level which means you go faster all day.
After using 61mm standard cylinder I started using these to see what would happen. Well more torque and top end speed with less piston size.
The best way to do this was with cold air intake along with larger main and pilot jet, a high performance cam as well as an upgraded CVT as in racing variator, clutch upgrade and slider weights.
The correct temp of fuel and air mixture plays a big part and a ceramic coated kit gets this done with ease.