Scar -- Yes, you can plate a KLX300 in Cal. -- legally. They, the Xr's, and the ATK's, are the only bikes that the manufacturers bothered to get Cali. emissions clearance for. I have been thinking long and hard about a KLX -- do a search for them and you'll see they have a lot of "true believers". They are last generation (like the XR's, and thus behind the new WR-f's, etc), but they are very lightweight, great-handling bikes. Remember, though, that they'll have a lot less torque than your 600. But with the pumper carb, idler gear, etc, I'll bet you could grow to love one. :) I know it's on my short list. . . . :p