Supertech 85.5mm Bore Piston Rings - 1x3.10 / 1.2x3.5 / 2.8x3.10mm High Performance Gas Nitrided

These Supertech piston rings feature a specific sizing of 1x3.10mm for the top ring, 1.2x3.5mm for the second ring, and 2.8x3.10mm for the oil ring. This combination is chosen to provide a solid seal within the cylinder bore, which is crucial for engine performance and longevity. The gas nitriding process hardens the surface of the rings, making them more resistant to wear and heat, especially important in high-performance applications where engines are pushed harder.

The nitriding treatment creates a tough outer layer that helps the rings maintain their shape and sealing ability under demanding conditions. This attention to material treatment and precise sizing means you can expect improved compression and better oil control compared to standard rings. When you're rebuilding an engine or looking to refresh your top end, these rings offer a well-built option for reliable performance.