Athena 66-70 BSA Startfire 250 OE Thickness Cylinder Base Gasket

This cylinder base gasket from Athena is made to the original equipment (OE) thickness, meaning it will fit your BSA Startfire 250 exactly as the factory intended. Athena has been making gaskets for over forty years, so they know what it takes to seal an engine properly. They use their experience and advanced technical skills to design and produce gaskets that meet the strict parameters required by original equipment manufacturers.

When you're rebuilding the bottom end of your engine, a reliable base gasket is crucial for preventing leaks and ensuring proper compression. Athena's production process keeps strictly to OEM specifications, giving you confidence that this gasket will perform as expected. It's a well-built replacement part designed to get your BSA Startfire 250 back on the road.