Like the Primato but lighter The latest incarnation of the ever popular Miche Primato cassette, now available with a greater choice of sprockets. The last position sprocket and lockring are made of AL7075-T6 Aluminium, giving reduced weight with greater strength. All middle sprockets are matt finish chromed steel. Steel first sprocket with matt finish chromed steel middle sprockets Anodized last sprocket made of AL 7075-T6 AL 7075-T6 lock ring 249g (11-25)