chain
I'm sure Shimano makes some fine chains but I like Sram.I got the top of the line hollow pin on my mt. bike.It has been on my bike all last spring/summer,all fall /winter,days of rain,rain and more rain.Took it off for cleaning.I toss it in a wide mouth plastic jar with some Simple Green, shake it up let sit a while shake some more.Rinse with hot water.Wipe dry.Nothing could be easier.Oh,I measured it for stretch,nothing.Unreal!I'm sure a lesser chain would be at the end of it's life by now.So sometimes you get what you pay for.