motor: high efficiency brushless
rated power:250w
battery:lithium battery
voltage:36v/8Ah
charging time:5h
max.mph:25km
max. range:35-40km(by throttle)
speed gear:SHIMANO 7 
frame:aluminum alloy
wheel size:20"
net weight:20kg
packing size:860*440*730mm
deficient protection voltage:30v
over current protection value:14A