$17.

I recking it's bloody lousy, especially given that I clean and lube it every week + every time it gets wet. I'm gonna throw on Ultegra replacement with HC73 chain and see how that goes.

I think most of the wear is from sand and road grit. The road grit is super fine and gets into eveything. It feels like talcum powder but it acts like emery. Very hard to get rid of it too. Might need to get a HP water gun except i can use it because of water restrictions, doh!