I've got the AC 1/4" and it's sturdy. Bounced it off a couple of rocks the other day, no damage at all. Only problem I found is when I went to adjust my Rebound on the rear. The linkage protection blocks the screw to adjust it! ha! But I'm happy to have the linkage protected, just means it takes a little longer to setup suspension. Oh well! -_-
Take a look at how beefy it is in the thread "AC Skid Pics" in this section.
PRO-TECT the thing is made of stainless. it also has room for bigger sprockets with out spacers. my buddies PRM did not. i think i only paid 140 or a little under. check out their web site it's not great but it works. the skid is awsome i actullay launced my quad off a hudge rock with it and didn't even scratch it
I had a PRM .250 on my 400ex and now I got it for my 450R and you can not tell it is back there as far as weight is concerned. I ride in the woods all the time and hit rocks a lot, so it stands to reason that I get a heavy duty one. The .250 is awsome for the woods, and I can get to all my adjustments on my shock. It even has the space to fit the Elka linkage! I know because I have the Elka linkage. PRM awsome!!!