Hastings Moly Replacement Piston Ring Set For Harley Big Twin 1941-1980

Hastings Moly Replacement Piston Ring Set For Harley Big Twin 1941-1980

Features

• All ring faces are pre-lapped for easier seating and, in the moly sets, the compression ring features a moly insert on its barrel face design
• Exclusive Flex-Vent oil control ring is the easiest of all designs to install because there are no right sides up or down
• It can't overlap, can't gouge and can't be installed wrong
• The 80-plus shoulders on the die-formed stainless-steel stress-relieved spacer/extender exerts uniform pressure on the rails for positive oil control
• Open design affords 200% greater drainage capacity than other designs