Aluminum alloy frame treated by powder coated finishing,enables the change of colors.Two sets of sealed ball bearings-are used.chloroprene rubber,and two sets of sealed ball bearings are used.

• 铝合金的支架，表面采用喷塑处理，可以改变颜色.；轮圈采用人造橡胶材料，采用两套密封滚珠轴承