Hybrid Scooter, Charging/Electric/Gasoline Three Gears, Range Min 340km

Why it's a Environment-Friendly scooter?

There are 3 function shift:
C(charging)/E(electric)/G(gasoline)
first you run in E position,if battery voltage drop to 44V,you need switch to C position,it will run by engine and consume fuel but at same time charging the battery,after runing 15-20Km,battery will be 80-90% capacity charged,then you need switch to E position to begin another cycle,
G position only use to climb steep slope,usually C/E gradability is 20%,F gradability is 30%

by above method,with 5L gasoline Euro III engine and 48V 20A battery,scooter can run 340km,that means 100km only consume 1.6L gasoline,

Engine:Single cyclinder,4 stroke,air cooling,
Engine size:625x390x315mm
Engine weight:31kgs
Gasoline type:90#
Displacement:124.6ml
Ignition:CDI electronic
Air Intake Mode:OHC cam chain drive
Rotation direction:Right
Starter:Electric/kick
Max power speed:5.4kw/7500r/min
Rated power speed:5.1kw/7000r/min
Max torque speed:7.5N.m/6000r/min
Min fuel consumption:367g/kw.h
Min Non load speed:1700r/min +-100r/min
Emission in idle speed(1700r/min+-100r/min):EURO III,CO <=2.0%,HC <=250x10(-6power) 

Clutch Device:Hoof block auto centrifugal type
Power output Mode:Variable speed V belt
Transmission:auto stepless speed change
Transmission Ratio range:0.88-2.6
Gear box Speed ratio:2.8 first level,3.075 second level

Self charging motor
Currency:35A
Torque:20N.m
Speed:500r
Voltage:48V
Size:12inch

Carburetor:PD24J
Spark plug:C7HSA(NGK),A7T.A7RT
Lubricants pumpt type:Rotor
Lubricants capacity:Crank box:0.9L,SF class SAE-10W/40 
                    Gear box:0.11L,GL-4 class SAE80W/90

Frame size:1250x500mm
Frame weight:15.5kgs

Scooter size:1850x600x1100mm
Wheel base:1260mm
Curb weight:135kgs
Max speed:80km/h
Tyre:front:3.50-10 rear:90/70-12

Wooden case size:1870x650x1120mm
Metal case size:1780x570x870mm