The Shape moulding machien frame is welded with hollow shaped steel, which has high strength and high stability structure design. After welding, high temperature annealing failure heat treatment was carried out, and finishing was adopted. Fine sand blasting and rust removal at the bottom ensures superior corrosion resistance.This non-inflatable tire system also eliminates the trouble of frequent repairs of traditional inner tubes.The dual-density tire structure even improves shock absorption by 30%, which significantly improves comfort and the overall riding experience.