5/16" Harley-Davidson Mirror Stem Adaptor Fits 10mm Japanese Bikes

Mirror stem adaptor so you can fit those fabulous american Harley/Kuryakyn 5/16th mirrors to your Japanese metric cruiser 10mm stem holes. Not suitable for Yamaha right hand side. Made by Kuryakyn, locknuts allow the mirror to be positioned for maximum effectiveness. Sold in pairs.