[JeffSGeorge]

I just recently purchased a Roketa MC-06-150 and i'm lucky to hit 50mph at full throttle on a flat stretch or 55mph briefly going downhill. It definitely won't hit the 65mph claims and I wouldn't even consider taking it out on the highway. As the others have mentioned I would consider going with 250cc or greater at a minimum if highway driving is something you plan to do regularly.