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Upgrade your engine with the HASTINGS piston rings designed for 1200 cc Big Twin models. These rings include top compression rings, second compression rings, and oil control rings, offering comprehensive sealing and performance benefits. The top compression rings feature a barrel face with a cast coating that facilitates efficient heat transfer between the piston and cylinder wall, helping to maintain optimal engine temperature and performance. These rings effectively control combustion chamber gases, transferring the energy from expanding gases to the crankshaft for power delivery. The second compression rings are reverse torsional taper face rings that promote side sealing, preventing oil from being forced under or behind the rings, which enhances oil economy and reduces emissions. Their reverse twist and taper-machined ring face mimic the scraping edge of a positive twist torsional ring, contributing to a cleaner combustion chamber. The oil control rings are a three-piece flex vent design that allows for better conformability to the bore with a small cross-sectional area. This design ensures uniform pressure through four steel rails and two expanders, providing reliable oil control and reducing oil consumption. Made in the USA, these rings are packaged with enough components to service two pistons, with two rings per groove and two rail rings per one expander ring. They are suitable for a variety of applications requiring dependable sealing, heat transfer, and oil control, making them an ideal choice for maintaining engine efficiency and longevity.
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