Use it on a WR250R. Works just like it was deigned to. Dropped the bike in a nasty decent and sheared the mount off at the post level. Had to “easy-out” the post and replace with another adapter. Glad it sheared off or I would have broken the master cylinder the adapter bases into. Worth having a couple of these if you ride nasty stuff and drop bikes a lot.
As the WR250R has the left hand threaded, Right Sided mirror Mount cast into the master cylinder, one is quite limited on aftermarket options. The double take Adaptor is perfect. I tightened with Red Loctite for 24hrs before putting the RAM Mount base in place. I am very pleased with the Double Take mirror setup. Huge upgrade over stock. Would absolutely recommend.