21490 oem cranks products are offered for sale by suppliers on Alibaba.com, of which crankshafts & bearing bushes accounts for 3%, bicycle crank & chainwheel accounts for 2%, and motorcycle crank mechanism accounts for 1%.
A wide variety of oem cranks options are available to you, such as alloy, aluminum alloy.You can also choose from road bike, kids' bikes and cruisers oem cranks,as well as from aluminum, polyester, and carbon steel oem cranks, and whether oem cranks is black, silver, or white.