指定后减震器端部配件的形状和尺寸。描述所需的特性。不适用于特殊摩托车，如公路赛车手、越野赛车手和试驾赛车手等，也不适用于三轮车辆。一些图说明了关注的形状和参考数量。

Specifies the shapes and dimensions of end fittings of rear shock absorbers. Describes the required characteristics. Does not apply to special motorcycles such as road racers, motorcross racers, and trial racers, etc. and to three wheeled vehicles. Some figures illustrate shapes and reference quantities of concern.