Installed on my Enduro bike - Santa Cruz Bronson... 1x10 with an 11-36 in the back and a Race Face narrow- wide 36t in front. (Used 2mm spacer on ISCG2 bolts.) Took it for a trail ride to test and it was silent, shifting was flawless (new Saint short cage helped ). No resistance... Like I was running no guide at all! Then took to Highland.. No slap on big drops and jumps... Then took to Killington and raced Enduro and Super D - flawless performance and never needed post installment adjustment... Perfect product so far!