A2W20 model specification:

motor: 36v 250w brushless motor     
PAS: Three adjustable speed  1:1 pedal assistant  
Throttle Wuxing throttle with power key and power indicator
initiating mode PAS and throttle
Battery: 36V8AH Lithium  rack battery 
Range 1:1 PAS mode, 40-55KM
Controller Intelligent brushless 36V250W
Charger 42V2A 100-240v input   ( European specs)
Charging time 5-7 hours
Max speed 25km/h 
Loading 120kg
Frame Folding carbon steel 
Wheel size 20 inch 
Tyre 20*1.75 tyre
Rim 20" aluminum alloy 
Front fork steel fork 
Front brake V- brake
Rear brake Expansion brake with motor lock 
gear  1 Speed
Stem Integrated folding adjustable stem
Brake lever Aluminum, cut-off electricity when braking
Chain wheel 40T
Chain Rust resistant chain
crankset Steel 
Saddle Comfortable saddle
Pedal Folding pedal
headlight  1 W LED headlight
rear rack  steel 
Fender steel  
Fully open size  1530mm long*420mm wide*1030mm high
Fully folded size  800mm long*300mm wide*580mm high
Certification CE EN15194
Weight N.W: 21kgs