SW-MOTECH Left & Right Side 40mm Mirror Extenders For Ducati Hypermotard 821 '13-'15, Hyperstrada 821 '13-'15, Yamaha FJ-09 '15-'16, BT1100 Bulldog '02-'05 & Others With Right/Left-Threaded M10 Mirrors
If you're tired of seeing your own shoulders in your rearview mirrors, then these are for you! This pair of mirror wideners screw into the original mirror mount on your motorcycle handlebars, providing a spacer between the base of the rearview mirror and the motorcycle's original mirror mount.
The height of the part itself is 40mm. The actual displacement will vary depending on the angle that the wideners are mounted onto the bike.