Hi Vic, I just bought a 2002 version and I have the same concern about it. I am just 5´8" and what I did is ride it sit on it infront of a mirror (if there´s one at the dealer) or ask some other customer to check for you. I personally think it´s a bit too small for 6´ person. 400cc should fit a bit nicer since it´s a bit bigger. By the way the 400 and the 600 share the same chassis! I think the ZZR is a great choice, it´s hard to find a water cool, sport/tourig bike at such reasonable price! it looks great!