TIRES
GOPED 6INCH TIRE	300-410x4
300x4	410x4 300x4
12.5x2.25	12.5x2.25
300-410x4 (9 x 350-4)
TUBES
200 x 50	300 x 4
8 1/2 x 2 (8 x 1 1/2 x 2)
To find the size of your tire look on the side. All pneumatic tires are printed with the entire tire Diameter and Width information in either standard or metric size. Many scooters have a wheel rim diameter of 4 inches and it may not be reflected in the size. If your tire says it is 200 X 50 in metric size then this is the same as an 8" diameter by 2" width tire (25mm = 1 inch) with a 4 inch diameter hole for the rim. The inner tube is also the same size. In some cases a tire might be listed for example as a 10 inch diameter, 2.80-4 or 2.50-4 width, or 2.80/2.50-4 - width of the tire and a 4 inch diameter rim hole (meaning the rim can accept widths of either 2.8 or 2.5 inches), or the tire or tube will only show the 2.80-4 or 2.50-4 on the side of the tire and not the outside diameter of the tire or tube. A 10 inch tire or tube is the outside diameter of the tire or tube, usually rounded off to the nearest inch. The width in inches is the 2.50 or 2.80, and the 4 is the diameter of the hole for the rim. In most all cases we list the physical sizes of the tire or tube diameter in the tire, tube, or wheel descriptions for your information and comparison, too. With this comparative information you should not make a mistake in buying the correct size.