The difference between single rocker arm and double rocker arm of motorcycle is different in appearance, processing technology and structure. 1. Only one side of the single rocker arm is connected with the frame through the supporting arm, and both sides of the double rocker arm are connected with the vehicle body; 2. The requirement of single rocker arm for machining accuracy and materials is higher than that of double rocker arm; 3. The boom of double rocker arm is a frame structure welded by upper and lower beams, and the single rocker arm is a single beam structure installed in the middle. Because the single rocker arm has only one stress point, its bearing capacity is stronger than that of the double rocker arm. The fewer accessories, the lower the equipment failure rate. Whether the engine is a single rocker arm or a double rocker arm is mainly related to the engine structure. Theoretically, the more rocker arms, the more valves, so the better the engine performance. Therefore, in theory, the double rocker arm of the engine is obviously superior to the single rocker arm.

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