S&S
S&S, M8 forged roller rockers arm set
S&S, M8 forged roller rockers arm set
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Forged from 8620 steel for greater strength. S&S roller rockers are stronger and designed to combat excessive valve thrust and valvetrain wear with higher lifts from .550" and up to a maximum of .650" valve lift. The rocker geometry is better suited for higher lift cams and the 50% longer shaft bushings to help increase valvetrain lif. Larger surface area on the thrust surfaces reduces wear on the heads and oil is sprayed directly on the valve springs for better cooling to help avoid broken valves due to excessive heat. Comes with standard 1.640 M8 rocker ratio. Note: See 597872 for a complete rocker arm rebuild kit with all components that are required.
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Why buy from Forty5°
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Verified compatibility
Every part we ship is checked against your bike's platform, year, and engine. If it doesn't fit, we tell you before you check out.
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Workshop installation
Book a serviceHave us fit it. Book installation at parts intake — same-day on most jobs, master techs only.
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Founder-led aftersales
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