I know that they recommend a smaller bike, but personally I say don't waste your money. I would look at the 11-1200 range (maybe a Sportster or a VStar Classic 1100). I know it might feel like that's too much bike for you, but it's not. I started with my 1200C right after the class and I'd not owned a bike before that. The 650 won't give you the performance you need and you'll be unsatisfied; especially if you're a bigger guy.