Supertech 101mm Bore Piston Rings - 1.0x3.7 / 1.2x4.10 / 2.8x3.10mm Gas Nitrided

Supertech is known for making well-built engine components, and these piston rings are a solid example. If you're rebuilding an engine with a 101mm bore, these rings are designed to fit right in and help seal your combustion chambers effectively.

The rings feature a gas nitrided finish, which is a surface hardening process that helps them resist wear and maintain their sealing properties over time. The specific dimensions are 1.0mm for the top ring, 1.2mm for the second ring, and 2.8mm for the oil ring, with corresponding groove widths of 3.7mm, 4.10mm, and 3.10mm. This setup is common for many gasoline engines and helps ensure a good seal between the piston and cylinder wall, which is crucial for performance and efficiency.