94-1300X STD.RINGS100/7 Motor

These S&S Cycle standard-size piston rings are designed for 4-inch bore forged pistons, commonly found in 100-inch and 107-inch high-displacement V-Twin engines. Sold as a pair to cover both cylinders, these rings are manufactured to the exacting standards S&S is known for in the American V-Twin industry. They are critical for maintaining cylinder seal, managing heat transfer, and ensuring proper lubrication within the bore. Whether performing a routine top-end service or a complete engine overhaul, these rings provide the durability required for heavy-duty touring and performance riding. Using genuine S&S hardware ensures these rings interface perfectly with forged piston grooves for long-term reliability.