F1 AWD High Quality E-Bike. Crank sets: Pro-wheel, Aluminium alloy, Square hole,52T. Handlebar Sets: Aluminium Alloy with Matte, H31.8 680,S31.8 90,SP31.6 350mm. Riding Mode: Electric Power Assist(5shifts); Pure Electric(5shifts); Pure Human riding 7 Speed cruise function.
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