I have a Shimano HG72 chain on my bike. I took it off to clean it and I'll be danged if I can get it back on. I broke a chain tool pin trying to get the pin pushed back in. I even took the darned thing in and had the link replaced that was damaged by the chain tool. I can't get it back together, so my question is this; what replacement chain will work? HG73 or can I get a comparable Sram chain that will work?