S&S Cycle 86-03 XL 3-5/8in Piston Ring Set

These S&S Cycle piston rings feature a moly facing, a molybdenum compound that's applied to the ring surface. This treatment is known for improving wear resistance, which means your rings will last longer under demanding conditions. It also helps with heat tolerance, keeping the rings stable at higher temperatures, and contributes to better sealing within the cylinder bore. This set is designed for XL models from 1986 through 2003, with a 3-5/8 inch bore size.

When you're rebuilding an engine, the piston rings are a critical component for proper cylinder sealing and efficient combustion. The moly facing on these S&S Cycle rings offers a practical advantage over standard rings, providing a more durable surface that can handle the rigors of engine operation. This attention to material detail helps ensure a solid seal between the piston and cylinder wall, which is essential for maintaining compression and power.