Many wide wheels require spacing of the rear pulley or chain sprocket to get the those in line with the front pulley or sprocket. Zodiac now offers spacers as universal as they can be made in four different sizes. Each of these spacers can be machined down to the next size under without having to worry about the spigot alignment. Just machine the face of the spacer down to the desired thickness. Spacers are available for 1984-1999 and 2000 to present applications. Can also be used as disc spacer for the same years. Drilled for use with up to 5/16" bolts.