Motorcycle tire question

I was given a tamiya hayabusa kit for christmas and am thinking about building it soon. I am not too familiar with motorcycles aftermarket parts so I hope someone can help me out. After searching around a bit I came up empty handed so here goes....
Is there a kit/resin/aftermaket place that I can find a wider rear tire/wheel for a motorcycle. I considered the revell choppers but those tires look to squared for what i am trying to do. This is the look I am going for
http://img295.imageshack.us/img295/5160/zx14tintedsignalsig6.jpg

Any help is highly appreciated!!!

Try to ask Dave at http://www.detailanddesigninscale.com/ I must say that I am not aware of any tyre/wheel aftermarket maker.