Part Number: 11-0191 Manufacturer: Hastings UOM: 1 - SET Summary:Hastings cast piston ring set is for a 3-1/2" bore and is .005 oversize. Features compression rings with the size of 1/16" and oil rings with a size of 5/32" . Sold as a pair for 2 pistons. Size: .005 Fitment: FXST 1984-1998 80" Evolution 1340cc FLST 1986-1998 80" Evolution 1340cc FLT 1984-1998 80" Evolution 1340cc FXD 1991-1998 80" Evolution 1340cc XL 1988-2003 Evolution 1200cc Country of Origin: USA