The 2011 DL650 mirros are regular right hand thread. See teh instructions on my site. Even if it isn't our extenders this will probably help.
Remember there are two parts to the mirrors. A base that screws down into the perch on teh handlebar and an upper cinch nut. Seome people disassemble teh cinch nut and start scratching their head.
Mirror Extender Instructions
Raise the rubber boot up the mirror stem to expose the hex cinch nut (upper) and hex nut for the male mirror stud. While your mirrors are in the stock position, hold the lower nut with a wrench...
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Remember there are two parts to the mirrors. A base that screws down into the perch on teh handlebar and an upper cinch nut. Seome people disassemble teh cinch nut and start scratching their head.
