i gave stock cage and run the 1.75 as Hollywoos does. Fits tight and no issues with getting the clamps to close. Used small shim to remove possibility of rotation. I ride mostly trails with some dunes. These mirrors are the best purchase I have made so far. Mounted them low so I would not bump them getting in and out of the seat.I used the shims that came with it for a 1.75 cage. No problems, mirrors tight. Am I missing something?
P.S. Love the mirrors!