This is a A-60V10 Sprocket PN: 60V10Main Description As Following : A-60V10 Sprocket P.N: 60V10 Hub Required: VInside Diameter: 1 1/8"Outside Diameter: 2.759"Teeth: 10 Crossed From: WSS106010 , , 20006010 , , 20006010 , , 2827-40827 JOHN DAY , 6713-53513 JOHN DAY , 673-S80601000 , , 673S80601000 , Found in Section & Models : Chains/ Sprockets/ Pulleys/ Hubs > Sprockets, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : Hub Required: V Inside Diameter: 1 1/8" Outside Diameter: 2.759" Teeth: 10