This is a A-50X32 Sprocket PN: 50X32Main Description As Following : A-50X32 Sprocket P.N: 50X32 Hub Required: XInside Diameter: 2"Outside Diameter: 6.721"Teeth: 32 Crossed From: WSS105032 , , 20005032 , , 20005032 , , 3016-0203 , , 6713-52463 JOHN DAY , 673-S80503200 , , 673S80503200 , 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: 6.721" Teeth: 32