The Dura rear sprocket bridges the gap between steel and aluminium sprockets. For a little weight compromise you can have a sprocket that lasts substantially longer than all aluminium sprockets on the market. Ideal for mud, sand and heavy conditionsFeatures:Made of durable heat treated steel that is stronger and longer lasting than aluminum sprockets.Streamlines design process allows excess material to be trimmed in favour of weight savings30% lighter than standard steel sprockets available in the market.Precision laser cut for the lightest steel sprocket design.ColourBlack