Shuangye developed new model G4-Z

Recently Shuangye electric bike factory have developed a new model-folding electric mountain bike,equipped with foldable aluminum alloy frame,36V 250W brushless motor,and 36V 9Ah lithium-ion battery hidden in frame,the max speed ups to 25 km/h(Europe standard),max distance ups to 40-60 km(determined by the pavement) every single charge.

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