High Quality Machined Lightweight Aluminium Sprocket Adapter. This Allows Instillation of Split Sprockets to Be Used On Ruttmann, Lil Indian Mini Bikes , Also fits Our Custom Mini Mag Rims . For Use With #35 Chain Split Sprocket 53-78 Tooth, We Recommend Sprocket Hardware kit with this Sprocket Adapter Bolt Cirfcle 2 7/8 / 73mm . Center bore is 1 3/8 which utilizes a 3rd bearing support
