HASTINGS Replacement Piston Rings — 3.875" bore, +0.005" oversize – 00-01, 05-06, 12-17 Dyna, 01-02, 04, 08-17 Touring, 02-06 CVO, 09, 11-17 Trike, 05-17 Softail

🔧 Premium replacement piston rings engineered for reliable sealing, oil control, and improved oil economy.

• Includes top compression rings, second compression rings, and oil control rings.
• Top compression rings feature a barrel face to aid heat transfer between piston and cylinder wall.
• Second compression rings are Napier style with a reverse twist and taper-machined face for effective scraping and side sealing.
• Oil control rings are a three-piece Flex Vent design; four steel rails and two expanders provide uniform pressure and positive oil control.
• Three-piece rails have a reduced cross section for better conformability to the bore.
• Includes enough rings for two pistons; two rings per groove except where rails use two rails per expander.
• Made in the USA.

Designed to control combustion gases and transfer the energy of expanding gases to the crankshaft while promoting oil economy and reliable service life. 🇺🇸