Pro-Tect - looks like a PRM desert but all the metal and tubing is twice as big and thick. very sweet. i've rode wheelie after wheelie on it and have had no problems.
thay also make some very good rear swinarm skids. Pro-Tect
I'd just like to point out that the 450r's subframe is way more expensive than a few replacement grab-bars. I got a PRM for my YFZ and ended up cracking my subframe, wish Id just gotten another stocker...just some food for though.