Cycle Visions Rear Wheel Pulley / Sprocket Spacers .25 Thick For 1984-99 Wheels These spacers are made from 6061-T6 billet aluminum and are machined with a flange for perfect alignment. Feature: Made from 6061 T-6 aluminum and features a machined finish Made to work with stock H-D aluminum hubs Flanged for perfect alignment May require longer bolts Note: Will not work with Cush drive pulley.