I weigh around 11 stones (155 pounds) and live on a very hilly island (it's just a giant volcano) and the Marauder (GZ250 in America) carries me up them just fine. Remember that the European GZ's carb is set up richer than the American bikes (thanks to their nanny laws) so it''ll do the job better. 65 MPH sounds about right for normal cruising, but the bike doesn't like wide open throttle for mile after mile, but it's a great commuter bike. Also, you'll like the economy. I did a check, yesterday, when I filled up, and found that I'd got 76 MPG (UK gallons) Cheap to run and maintain, but it is what it is. No 250 is gonna be a crotch rocket.