Hastings Cast Piston Rings +.020" for 1200cc Twin Power

• Size: +.020"
• UPC: 075538084112

Hastings Cast Piston Rings for Twin Power Pistons are designed for durability and performance in specific motorcycle applications. These ring sets include cast iron compression rings and three-piece flex-vent oil rings, ensuring proper sealing and oil control. Early 1200cc applications feature a one-piece cast iron oil ring, while later models utilize the three-piece design. The rings are available for various engine configurations: - **Late 1200cc Models (FL, FLH, FXE, OHV)**: Standard bore of 3.438" with 1/16" compression rings. Compatible with 55-80 Big Twin engines. - **Early 1340cc Shovelhead Models**: Standard bore of 3.498", featuring 1/16" compression rings and 3/16" oil rings. Fits 78-E83 FL and 79-E82 FX models. - **Late 1340cc Evolution Models**: Standard bore of 3.498", using 1/16" compression rings and 5/32" oil rings. Fits L84-99 Evolution Big Twin engines. The reverse torsional taper face second ring and easy-to-install "spiral on" three-piece oil rings enhance functionality. These sets are designed for use with two pistons and provide a reliable replacement for OEM applications.