Why not buy a clutch mount from a motorcyle, from Ebay. Might be able to find one with mirror and lever complete. Just make sure it is for 7/8" not 1" bars.....Heres one from a Honda........I have tried 3 mirrors on my bike and have not found any I like. They all seem to vibrate loose .
Im wondering if anyone makes a clutch or brake lever for bicycles with the mirror mounted right on the lever, like the ones on my Honda?