This is a A-60X35 Sprocket PN: 60X35Main Description As Following : A-60X35 Sprocket P.N: 60X35 Hub Required: XInside Diameter: 2"Outside Diameter: 8.783"Teeth: 35 Crossed From: WSS106035 , , 20006035 , , 20006035 , , 3016-0251 , , 6713-54813 JOHN DAY 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: 8.783" Teeth: 35