BSA MAG ADVANCE GEAR,A10

This is a magneto advance gear listed for the BSA A10. It's a component from the ignition timing side of the engine, working with the magneto drive to control ignition advance as the engine speeds up. Our catalog record on this one is brief, and it's not a part we've had come through the shop with much history behind it, so there's not a lot more we can tell you from the file.