Mirror adapters for motorcycles
Mirror adapters are used to mount universal mirrors on a specific vehicle.
To know which adapter you need, check out these three factors:
Type of thread of the universal mirror: if the mirror ends on a bolt, then we speak of external thread. If your mirror ends on a nut, then we speak of internal thread.
A. Thread diameter of the universal mirror: measure the thread diameter of the mirror and select the correct value for this filter. This corresponds to the "A" side of the adapter.
B. Mirror mount handlebar thread diameter: Measure the thread diameter of the mirror attachment on your handlebars and select the correct value for this filter. This corresponds to the "B" side of the adapter
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Attention!
Yamaha also uses left hand thread for the right hand mirror on the handlebar. So, select 'M8 left' or 'M10 left' at the filter 'B. Handlebar thread diameter'.
New Harley-Davidson models use 5/16" thread on their mirrors, which is almost, but not exactly the same as M8. In some cases a special adapter comes with the mirrors. Please check beforehand if this is the case. Older Harley-Davidson models have mirror stems without thread on the handlebars, instead they use a locking nut. In that case select 'none' at the filter 'B. Handlebar thread diameter'.
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Does your motorcycle have no mounting hardware on the handlebars or fairing to accept your mirrors? Then choose one of the clamps from the 'mirror mounting' category.