Supertech 93.50mm Bore Piston Rings - 1x3.50 / 1.2x3.90 / 2.8x3.10mm High Performance Gas Nitrided

These are Supertech high-performance gas nitrided piston rings designed for a 93.50mm bore. They feature a specific ring groove sizing: 1x3.50mm for the top ring, 1.2x3.90mm for the second ring, and 2.8x3.10mm for the oil ring. This set is built for gasoline engines and the nitriding process hardens the surface for improved durability and wear resistance.

The gas nitriding treatment is a key feature here, as it creates a very hard, wear-resistant surface on the rings. This helps them stand up to the heat and stress of combustion, leading to a longer service life and better sealing performance over time. Proper ring seal is crucial for maintaining compression and preventing oil from entering the combustion chamber, which directly impacts engine performance and efficiency.