85-94 FX Model, 91-98 Dyna, 84-99 Softail, 85-98 Touring, 86-90 Sportster
All-new design improves tappet reliability by eliminating the inner bearing race. Simplifying the design of the tappet increases the wall thickness of the roller by 27%, and provides a 36% increase in the size of the tappet axle. The result is a tappet with twice the strength and stability of the stock design.