Bought this engine to replace my tired Lifan 125cc in my Motoped Pro. Wow! I would not lie to say Double the power PlusPlus. It was not plug n play in my setup, but with a rotating intake and a offset kickstarter swap. It was in and working, but to be complete I need to find wider offset cranks, or install the $300 foot peg kit. I am more than satisfied with the upgrade.