Durable Rocker Arm for Briggs World Formula Valvetrain

Valvetrain precision drives kart dominance, and the Rocker Arm (SKU 557015) delivers it flawlessly in your World Formula setup. Acting as the fulcrum for valve action, it translates cam lobe motion into exact lifts, keeping your engine's breathing rhythm perfect for sustained high-rev assaults.

• Forged for strength under extreme spring pressures
• Reduces wear on stems and guides
• Supports dual-spring configurations for stability

In races where engines live at the edge, this arm prevents float that robs power, ensuring every cycle extracts maximum energy. Its low-friction pivot means less energy loss, directly feeding into faster acceleration. For pit efficiency, it's a drop-in replacement that organizes valvetrain maintenance without complications.

Compared to worn rockers, SKU 557015 restores crisp response, letting you feel the engine's pulse through the seat. Ideal for rebuilds, it pairs with keepers for a valvetrain that's as reliable as it is rapid.