what size is that hole that the mirrors screw into? 8mm or 10mm?
are they normal thread or backwards, right hand or left hand, clockwise or counter-clockwise?
see ebay items, would these do the job? maybe with some silicone to make them air tight?!?
Motorcycle Motorbike Threaded 8mm Mirror Block OFF Plugs 2 X M8 RH Threads | eBay
Pair OF Billet Aluminium M10 Threaded Motorcycle Motorbike Mirror Blanking Plugs | eBay
are they normal thread or backwards, right hand or left hand, clockwise or counter-clockwise?
see ebay items, would these do the job? maybe with some silicone to make them air tight?!?
Motorcycle Motorbike Threaded 8mm Mirror Block OFF Plugs 2 X M8 RH Threads | eBay
Pair OF Billet Aluminium M10 Threaded Motorcycle Motorbike Mirror Blanking Plugs | eBay