Hello, I have a profile 39T chainring and a 17T aluminum cog. I currently have a Sram PC-850 chain. which I have found is 7.1mm x 3/32" Can I run a KMC x9SL or a KMC x11SL. They are 11/128 which they say will work with 3/32 sprockets, the thing that I am not sure on is whether I can run a 1/2" instead of 7.1mm?