This is a A-60X33 Sprocket PN: 60X33Main Description As Following : A-60X33 Sprocket P.N: 60X33 Hub Required: XInside Diameter: 2"Outside Diameter: 8.304"Teeth: 33 Crossed From: WSS106033 , , 20006033 , , 20006033 , , 3016-0249 , Found in Section & Models : Chains/ Sprockets/ Pulleys/ Hubs > Sprockets, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : Hub Required: X Inside Diameter: 2" Outside Diameter: 8.304" Teeth: 33