The chain on the Versys is a DID 520vo114. O-ring. It has 9500 miles on it, sprockets and chain replaced at the same time. Sprockets look good. Lately I'm having to adjust the tension on it. It's out of spec for tension (1.0 - 1.4) in all but 1 small section where it's noticeably tighter where I adjust the tension to the tight side of spec. I think there's only maybe 3 o-rings missing and seems in good shape otherwise, no major kinks. I do have some lengthy intervals w/o lubing (I do need to be better about this). How much wear is too much? There still a fair amount of room in the adjuster to tighten, keep going? Seems odd that I'm still tightening or is this normal? I was hoping to get at least 12k mi on it (December time frame) but it's a budget priced chain so maybe I'm expecting too much?