Hello everyone! I need help deciding what engine I should use for my next build. My bike setup is an aluminum skyhawk gt with the motor mount, 26"mag wheels with 3" white boa slick tires, and a 26th sprocket. I am going back and forth between mainly two motors, a modified 66cc china girl or a denardis 50cc or 60cc engine. I really want to be able to hit 60 mph and right now I am leaning toward the (ktm) denardis 50/60cc motor. Can anyone give me some insight on what would be my best option for this build? Thank You!