This is a 600/700-20/21 Michelin tube with a TR13 Offset rubber stem. This high quality 20 inch tube fits up to a 21 inch wheel, 600-700 section widths. Recommended application is for Bias Ply tires and the recommended tire fitment is for a 600/700-20/21 Bias Ply tire. Fits 600-700 width, 20-21 inch diameter tires. This 20 inch tire tube has a TR13 rubber stem and the valve stem location is Offset. TR13 stem is rubber stem 1 1/2 inches tall, 3/8 inch in diameter. Actual item may differ from photo. Hartford brand tubes are built to meet our specifications using premium grade materials. They are designed specifically for their applications, to provide a high quality inner tube solution and reliable service life. These are excellent quality tubes, available in a wide range of sizes for collector and specialty vehicle applications.
