Ok so iv been doing alot of dimension checking. And I was looking into swapin and 2002 ZX9R motor into my bike (mine being the '02 6R). Now from what I have read and what I have found the dimensions are all the same, a few differnt like seat height but its only off like half an inch which i think may be due to conversion from metric. But I think they are the same frame, the only different I have found is the rear sway arm has extra bracing. I didnt know if anyone knew for sure or knew someone who does. And if you have anywhere paticular to find a '98-'02 9R motor otherwise is Ebay or salvage yard time... Thanks!!