ZX636 rear wheel
So I just found out my wheels are irreparably damaged and am looking at replacement options. I know I can easily and cheaply go with stock replacements, but I thought I'd try a bit of an upgrade. I've seen posts for 04-05 ZX10R wheels and know its entirely possible to do with the 636 rear hub. I have a couple of questions though:
1) Is there a reason 06-10 ZX10R wheels can't be used? I can't find anyone trying this.
2) What would be the down side to using a stock ZX636 rear wheel? I know it's only a 5.5" rim but people run a 180 tire on the 12 rims and seem to like it so would there be a problem running the 5.5" rim and 180 tire combo on the 12?
Thanks for the help.