Select type, year, make, and model
Upgrade your engine's performance with the HASTINGS piston rings designed specifically for Evolution Big Twin motorcycles. This set includes top compression rings, second compression rings, and oil control rings, all engineered to optimize combustion efficiency and oil management. The top compression rings feature a barrel face and cast coating, which facilitate effective heat transfer between the piston and cylinder wall, reducing thermal stress and improving longevity. The design helps maintain proper compression and enhances power output by sealing the combustion chamber effectively. The second compression rings are reverse torsional taper face rings that promote side sealing to prevent oil from leaking into the combustion chamber, thereby improving oil economy and reducing emissions. Their reverse twist along with a taper-machined face replicate the scraping edge of positive twist torsional rings, ensuring optimal contact and sealing performance. The oil control rings are three-piece flex vent rings, crafted with a small cross-sectional area for better bore conformability. Their four steel rails and two expanders provide uniform pressure, ensuring positive oil control and reducing oil consumption. Made in the USA, this set provides enough rings for two pistons, with two rings per groove except for the rails, which include two rail rings per one expander ring. Suitable for demanding motorcycle applications, these rings are designed to enhance engine durability, efficiency, and overall performance. Proper installation of these premium Hastings rings will help maintain engine integrity and maximize your Big Twin's power output and reliability.
Features:
US Dollars
