Rocker Arms 69mm for GY6 50cc Engine (139QMB / 139QMA)

The 69mm rocker arm assembly is designed to replace the original rocker arms on GY6 50cc 139QMB and 139QMA engines. It ensures precise transmission of camshaft movement to the valves, guaranteeing optimal valve train operation.

Made from wear-resistant materials, these rocker arms offer excellent durability and are an ideal choice for engine rebuilds, repairs, or replacing worn components.

Benefits and advantages:

• Direct replacement for original rocker arms
• 69mm length
• Ensures precise valve opening
• Reduces wear on valve train components
• Robust and durable construction
• Precise fit
• Simple installation
• Ideal for engine rebuilds