This item goes on the outside of your front hub and connects the speedo cable to the speedo drive gears. Suitable for all series 1,2 & 3 models, Li,TV,SX,GP Italian and Indian. Remade speedo union in solid brass as per original Lambretta spec. These are the most perfect reproductions of the speedo union that you will find any where. As used in the very top restorations.