Forged from 8620 steel, heat-treated then shot-peened for additional strength and durability. Rocker arms have .75" long bushings instead of the .50" long bushings found on most other rocker arms. Feature a modified lubrication system with unrestricted roller oiling. Must be used with adjustable pushrods; sold separately. For ease of adjustment on 91-03 XL and Buell models, use pushrod tube covers DS-193829. Recommended that new rocker shafts be used when installing roller rocker arms; available separately. Made in the U.S.A..
