from what i heard, the front wheel will bolt right up and the rear wheel you gotta use the spacers from the 07 to make a 05-06 wheel work, i'll let ya know in a day or two, i just got my 07 kawi 600 yesterday and i'm gonna try to put my 636 wheels on it
You can make it work. I rode with a kid that had two 05 rear rims for his 07. If you need a rear rim I have a good 06. I wanted to use them on my 04 but won't work. Here is his post on CCS http://www.ccsforum.com/index.php/topic,17510.0.html
i just put the rear wheel on and the bolts that hold the rear disc on hit the brake caliper bracket, just a lil bit though, the wheel spins but you can hear the bolts scrape just a lil bit i'm not sure what everybody does to make them work though, i used the spacers from the 07 too