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New Design BY20D BT40D ebike programmable conversion kit with bottle battery included

product:KF Bottle battery ebike kit 03-29
MTB bike/road bike/folding bike/ touring bike /Tricycle /front wheel/rear wheel/front motor/rear motor/easy to ride/IP65 waterproof Grade/ready to ship/free tax/quick delivery/aluminum alloy/bottle battery/easy installation/easy to fit/quick shipping/

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