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About product and suppliers:
        Alibaba.com offers 1,226 bicycle bottom bracket products. About 53% of these are other bicycle parts, 3% are bicycle crank & chainwheel, and 1% are brackets. 

A wide variety of bicycle bottom bracket options are available to you, such as free samples, paid samples. 

There are 1,230 bicycle bottom bracket suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and Australia, which supply 97%, 1%, and 1% of bicycle bottom bracket respectively. 

Bicycle bottom bracket products are most popular in North America, Western Europe, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 209 with ISO9001, 28 with Other, and 14 with ISO14001 certification.