All Thrust Company rear sprockets are made of the highest quality 7075 aerospace grade aluminum alloy and are heat treated to a T6 hardness. This means they are light AND strong. They are machined to exact specs with tolerances much more stringent than other aluminum sprockets and many times tighter than OE sprockets. What this means is that your chain will fit the sprocket better and everything will last longer. Additionally, they are either hard anodized or chemically etched to give them a uniform, even finish. This process also provides corrosion resistance.
If you would like to receive your sprocket RAW please specify in the notes at checkout.