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。
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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