common configuration
frame: alloy aluminum20"
carton size:
weight:kgs
color:customized color
tire: 20*1.75
rim: double wall alloy
brake:  f/r v brake
derailleur: shimano,7s
crankset:alloy aluminum
handlebar/stem: alloy, 
saddle:velo
pedal:wellgo
chain: kmc
motor: rear hub motor 36v/250w
battery: lithium battery 36v/7.8ah
charger: ac 110-240v 2amps charger,european standard
controller: 6mos
display: led/lcd
f/r light: f&r light
f/r mud plate:f&r fender
back hanger: available
pedal assist: speed sensor
fork:rigid fork

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