Bicycle tube are used to seal the bicycle tire against pressure loss. The perfect tube increases the comfort when riding a bike, as the tire's width matches the rim width perfectly. As a result, the rolling resistance is minimized and the profile can unfold its optimal effect. When purchasing a bicycle tube, you should always consider the dimensions of the rim and the tire, as these essentially provide the specifications for the required bicycle tube. In our assortment, you will find tubes from 8 to 29 inches.