Made from 6061 T-6 aluminum, then hard anodized for durability One-third the weight of stock pulleys All '85-'06 Big Twin pulleys come with a spacer for use on '85-'93 models Made in the U.S.A. When using a larger or smaller pulley, change in belt length and modifications to the axle adjustment slots may be required.. TRAN PULL 32T 85-06 BT