In the past month I've seen 5 new 8sp shimano chains brake at my work (yes they where installed right). I got the ok from the owner to order SRAM chains for the shop. No more shimano chains. I've used SRAM components for the last 3 years and as of last year no shimano on my bike and no problems ever. Is it me or shimano is not the same as is once was. Shimano does two things right their cassettes are better than SRAM and the components are mechanic friendly to use.