600W Electric motorcycle

motor power: 600W(brushless)
Battery: lead-acid  12V/20AH x4pcs
wheel size: 3.0-10
brake:front:disc rear:drum
Rated speed of revolution: 500r/min
climbing ability≥20°
Rated efficiency: ≥80
Power consumption per 100km: ≤1.5°
Max weight capacity: 100kg
speed: 40km/h
n.w.: 94.3kgs
packing size: 1750*610*1040mm 
container load: 65pcs/40GP