Swingarm or frame modifications may be necessary for extremely small or large sprockets. 120 link chains are supplied and must be shortened to fit your set-up.

The Zipper’s Chain Conversion Kits are available for late model 5-Speed Big Twins, 6-Speed Big Twins and Sportsters.

Contact your favorite dealer or call Zipper’s Performance Products at 410-579-2828. You can also visit them on line at www.ZippersPerformance.com.