On May 17, the now 23-year-old Liang took another bold step when he decided, in Chengdu, to explore the world by bike, alone.

5月17日，目前已经23岁的良杰在成都再次做了个大胆的决定：独自骑单车环游世界。

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The other purpose for the mid drive is to step-up the gearing - with the aerodynamic fairing body on, the bike can go very fast with very little power.

其他目的的中期驱动器是逐步的调整-与气动整流罩机构，自行车可以非常快很少权力。

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