The transmission is fixed to the gear speed and selected with the gear shift lever.

人力换挡模式：变速箱齿轮速度固定并通过变速杆进行选择。

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Transmission : normally meshed helical gear drive, coupling sleeve shift and two lever operation. The transmission has five forward speeds and four backward speeds .

变速箱采用常啮斜齿轮传动，结合套换档、双杆机械操纵，前进五档、后退四档。

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In a manual transmission, gears slide along shafts as you move the shift lever from one position to another, engaging various sized gears as required in order to provide the correct gear ratio,.

在一个手动变速器里，当你操纵换挡杆从一个档位到另一个档位时，齿轮沿轴向滑动，使大小不同的齿轮进行啮合从而满足不同的传动比的需要。

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There is a battery life indicator on the left handlebar, and the Shimano Revo-shift lever -- which controls what gear you're in -- on the right.

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