I can see that the chain on my 2006 WR is hitting the inside of the left hand subframe tube. Although I only have 230 miles on the bike, there seems to be considerable wear, I'm concerned. I have checked the chain adjustment several times to ensure that the chain slack is at the minimum specification. I don't recall that this occured on my 2003 WR. Anyone with this problem have a fix? Does the wear stop after awhile? Or, can I expect the chain to saw through the subframe tube?