Barnett is leading the wave of the future with the development of these smooth working, long lasting "Series-K96 Kevlar" clutches. Test results show that Barnett's asbestos free "Series-K96" clutches lasted 12 times longer than asbestos clutches and 3 times longer than semi-metallic.Fits 1991 to present Sportster and 1991-2002 Buell. Can be used in conjunction with OEM or aftermarket steel drive plates.