... ,Saddle,Pedal.Hub Spindles Rear & Front, Middle Axles,Free wheel,Chain wheel&crank,Steel Ball,and Cotter Pin. There are more than one ... and ED2.Teeth crank and weight is to order3.Material: Steel,Aluminum Alloy and Carbon4.All are tested by china CIQ ... before leaving factory Hot seeling durable bicycle crank with chain wheel