I have a question...

Let's assume that a new rider with "some limited" experience is getting a sportbike. I see the arguement of getting a 600 to gain seat time and agree with it. But what if this noob is a big guy? Say 6'2 260-270 pounds. Does his size mean that he should go to a liter bike? I mean he could "hold it up". Will it affect acceleration?

I got asked this question, and wanted to make sure that I answered it correctly...