This is a A-60X22 Sprocket PN: 60X22Main Description As Following : A-60X22 Sprocket P.N: 60X22 Hub Required: XInside Diameter: 2"Outside Diameter: 5.666"Teeth: 22 Crossed From: WSS106022 , , 20006022 , , 20006022 , , 2827-42027 JOHN DAY , 3016-0238 , , 6713-54163 JOHN DAY , 673-S80602200 , , 673S80602200 , 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: 5.666" Teeth: 22