I think that's a cruiser thing. Yamaha uses reverse threads on mirrors where the end of the arm screws into a perch on the bars. The reverse threads cause the mirrors to tighten, instead of loosen, with the wind blast.Hippie said:Are the yamaha mirror bolts reverse threaded?
I was looking at some aftermarket mirrors and many mention
"Yamaha Reverse Right" as an option.
Some places also sell a Yamaha Reverse Thread Adapter.