About product and suppliers:
            372 folding bike stem products are offered for sale by suppliers on Alibaba.com, of which bicycle stem accounts for 19%, bicycle accounts for 8%, and other bicycle parts accounts for 1%. 

A wide variety of folding bike stem options are available to you, such as 25.1 - 26.5mm, 26.6 - 28.0mm, and 28.1 - 29.5mm. You can also choose from carbon fibre, steel, and titanium folding bike stem

There are 168 suppliers who sells folding bike stem on Alibaba.com, mainly located in Asia. The top countries of supplier is China, from which the percentage of folding bike stem supply is 100% respectively.