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The CP Pistons gas‑nitrided steel piston ring set for an 86.7mm bore includes a 1.0mm top ring (THG), a 1.2mm second ring, and a 2.8mm flex vent oil ring. Specified for the listed bore size, these gas‑nitrided steel rings provide the defined dimensional and material characteristics for builders assembling engines that require 86.7mm bore ring components.
CP Ring 86.7mm Bore Gas Nitrided Steel 1.0mm Top Ring THG 1.2mm 2nd Ring 2.8mm Flex Vent Oil Ring
