Hi everyone. My experience with bike berry has been a three star rating so far. I bought a 66cc/80cc 2 stage racing engine. The bottom end and cylinder gasket looks like its been used. The piston has gouges and the copper gasket was dirty and has scratches all over it. My star rating will go to five when or if they replace what has damage on it. I also bought the bike with the gas tank built in it. I will give a five star rating if all is well with the bike. Until next time. Peace.