1047 aluminium crank arm products are offered for sale by suppliers on Alibaba.com, of which bicycle crank & chainwheel accounts for 36%.
A wide variety of aluminium crank arm options are available to you, You can also choose from alloy, aluminum alloy aluminium crank arm,as well as from road bike, kids' bikes, and cruisers aluminium crank arm, and whether aluminium crank arm is aluminum, polyester, or carbon steel.