Back Cadwyn beic Welsh Fahrradkette German Bicikla ĉeno Esperanto Cadena de bicicleta Spanish Kate (bizikleta) Basque زنجیر دوچرخه Persian Polkupyörän ketjut Finnish Chaîne de bicyclette French Rantai sepeda ID Catena (meccanica)#Bicicletta Italian
A bicycle chain is a roller chain that transfers power from the pedals to the drive-wheel of a bicycle, thus propelling it. Most bicycle chains are made from plain carbon or alloy steel, but some are nickel-plated to prevent rust, or simply for aesthetics.