Avant Touring Bicycle/Tandem/Four Round of Double Row Bike ((AvantTB01))

The four round of double row (Aluminum alloy wheel hub 300 yuan more expensive than steel, aluminum alloy wheel hub aluminum alloy wheel hub has an aluminum alloy integralwheel drum brakes)
The steel frame, steering wheel control system, pre grid lamp 
All bicycles contain sunshade which with variety colors and also can be costumised.  Another body of each bike is high-frequency welded pipe Q195, touring multiplayer bicycle has seat belts for children.