Wheel-mounted speedo drive for speedo cables with three spokes, retainer nut and square drive. As there are various types of drive fitted to these machines, please check the product image to be sure you are ordering the correct item. The item pictured is the one you will receive. Attention should be paid to the mounting height (width of the drive between wheel and fork).The mounting height of this version is 29mm and the drive plate is flatter. The drive is additionally held in place on the back with a circlip. Fits on scooters made in China with 15mm diameter of the wheel axle.