Driven Sprocket Nuts are machined from 7075 aluminum and are anodized in 4 brilliant colors, Black, Blue, Gold, and Red, to suite any taste or style. These sprocket nuts fit most late model Japanese sportbikes with 10 X 1.25 thread pitch studs and can be used to replace you rounded stock nuts or to give your bike a trick custom look. Come in packages with 6 sprocket nuts.