Caad9 w105 came stock with the DX10 changed it out after about 1500mi. when I changed my cassette when I started using new wheels with a Sram 1070 as my local shop did not have an KMC's in stock. He assured me that they were functionally equivalent and I should have no issues with shifting compared to each other. He could not of been more wrong. I completely despise the Sram chain. The Sram chain never seemed to shift nicely. I rode that chain for ~500mi. Adjusted the derailleurs multiple times etc... finally gave up and put on a KMC x10.93 an miraculously my shifting is back to amazing.