This is a 28-1.75/2.0 Motorcycle/Bicycle tube. This cycle inner tube has a TR13 rubber stem and the valve stem location is center. Recommended application is for Bias Ply tires and the recommended tire fitment is for a 28x1.75 Bicycle tire. Actual item may differ from photo. Coker Tire Company features a huge selection of classic cycle inner tubes. 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.