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About product and suppliers:
        Alibaba.com offers 1,577 four-wheel bicycle products. About 58% of these are bicycle, 20% are ride on car, and 4% are bicycle light. 

A wide variety of four-wheel bicycle options are available to you, such as 22", 12", and 16". You can also choose from kids' bike, tandem bike, and mountain bike. As well as from steel, aluminum alloy, and carbon fibre. And whether four-wheel bicycle is yes, or no. 

There are 1,585 four-wheel bicycle suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Philippines, and United States, which supply 99%, 1%, and 1% of four-wheel bicycle respectively. 

Four-wheel bicycle products are most popular in South America, North America, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 185 with ISO9001, 104 with Other, and 14 with ISO14001 certification.