Feature(may vary by option.)
●Rocker arms are usually made of metal and have high strength and wear resistance.●The rocker arm is connected to the camshaft by a rocker rod. When the engine is working, the rotating motion of the camshaft causes the groove on the rocker arm to contact the valve rod head.●The rocker arm usually has two grooves●The design and geometry of the rocker arm directly affect the opening and closing time and amplitude of the valve.●The rocker arm has sufficient stiffness and strength to withstand the thrust and friction of the valve rod head.[Silent Rocker Arm]
![](https://m.media-amazon.com/images/I/31Z6Ofise3L._AC_.jpg)
[Normal Rocker Arm]
Description
Motorcycle Silent Rocker Arm
Item Details:
1. Compatible With YAMAHA YBR125 YB125Z XTZ125
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