Yeah I just bought a cheap set called “Bevel Engineering” and they won’t stay put on the trails or even high speed bumps on gravel roads. Had to use my own custom cut rubber shim to even get them mounted securely to the roll bar because the shims it came with were not enough.
BTW: the roll bar diameter on my 2021 700-4 where mirrors mount is 1.625”
But front bumper is 1.75” if you want to mount anything up there