Use these adapters/spacers to mount any aftermarket 10mm in-hole stalk type turn signals into your Yamaha. These fill the hole left behind when removing the factory turn signals. The precise fitment of these adapters sandwich the hole and secures in place after mounting the turn signal. These will work on the front fairing or factory rear fender. Price is for 1 set to accomodate front OR rear, purchase 2 sets if you plan to install all 4 turn signals.